Transfinite arithmetic --- Introduction ---

This is an exercise as well as a game. Let a set E of k elements in the finite ring /n, represented by k integers between 0 and n1. For any element t/n, the addition or multiplication by t transforms E into another set E t/n.

Thus the exercise generates two sets E,F/n, of the same number of elements, and asks you to transform E into F by successive additions and multiplications by elements of /n. And you will be scored according to the number of steps you make.

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