: Exchange Program

 I look at my exam paper for the last time before passing it to our Professor. 

 The Professor looks at me with disbelief in his eyes. "You're fast. Are you sure you don't need to check it again?"

 The exam takes an hour, and it's only been half an hour, but I have already turned in my paper. I smile at the Professor and shake my head. 

 The Professor put a time stamp on my paper and asked my exam scheduler. It's a card where my exam schedule was written. The Professor stamps each student's card the time they start their exam and the time they end it. 

 "You always turn in your exam paper early. Intelligent people are really brave." He then stamped my exam scheduler and gave it back to me. "Good luck with your other exams."