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As a child did you ever play the game "One potato, two

potato..." to determine who would be "it"? The complete rhyme is given below.


One potato, two potato, three potato, four;

Five potato, six potato, seven potato, more.

O U T spells "out you go."

A child is pointed to during each phrase. There are four phrases each in lines 1 and 2 and seven phrases in line 3, so the last child pointed to is the fifteenth child. If there are fewer than 15 children, you go around the circle again. The child pointed to when the word "go" is said is "out". The game begins again with the remaining children, starting again with the first child. The last child remaining is "it". 

Simulate this game in a computer program. The input is the number of children; the output is which child is it. 

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