SP10292 SHELL - Shell game

Your program is to play the traditional "shell" game ([http://en.wikipedia.org/wiki/Shell\_game](http://en.wikipedia.org/wiki/Shell_game "here")). The game is played as follows: There is a person called an operator; he/she has 3 identical, non-transparent hollow objects - shells, and a metal ball, which he/she places under one of these objects. Then, the operator quickly swaps pairs of shells several times; if shells at positions A and B are swapped, and the ball is under the shell at position A, it moves under the shell at position B. In the end, you have to guess which shell the ball is under. The shells are identical, and positions mean immediate position that you see (left will always denote the leftmost shell, not the shell that was leftmost in the beginning). Input The first line of input contains one string - "left", "center" or "right", denoting the position of the shell the ball is under in the beginning. The second line contains an integer N

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