Ren Baoshuo ceaf708b95 B - Base K ... https://atcoder.jp/contests/abc220/submissions/26147462		2021-09-26 20:33:43 +08:00
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A	A - Find Multiple	2021-09-26 20:18:08 +08:00
B	B - Base K	2021-09-26 20:33:43 +08:00