Chapter Four

Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four FourFour Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four FourFour Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four Four 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