Jason, an ICS (Introductory Chemistry Studies) student, is writing the CCC, the Canadian Chemistry Contest, but he has a slight problem. He is not very good at chemistry!

Help him out so that he can make it into the CCO, the Canadian Chemistry Olympiad!

This is a junior contest, with difficulty being approximately ICS3U level (Excluding the bonus question) or CCC Junior level.

Completing any 1 problem will enter you into a raffle for a prize!

The contest ends on October 22, there is no time limit.

Most importantly, have fun!

NOTE: Do not print out any output that is not in the problem specification! Doing so will cause the judge to grade your submission as incorrect. For example, do not print statements such as "Enter the number of terms: ".

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