Consider the following game: given two positive integers and , players A and B take turns to write digits in base (from 0 to ), starting with player A. The digits are written from left to right. For instance, if A writes a 5, B may write a 1 to form a 51, but not a 15. (And then A would write another digit, and then B, and so on.) If at any point during the game a multiple of (including 0) is written (in base ), then B wins and the game finishes.
If A can indefinitely prevent B from winning, both players will eventually get bored and player A will be declared the winner. Otherwise, they will keep playing until B wins. Can you determine who will be the winner? Assume that A and B play perfectly.
Input consists of several cases, each with and . Assume and .
For every case, print the name of the winner.
Author: Martí Oller
Generation: 2026-01-25T11:37:50.095Z
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