Baoshuo 4c4504b295 B - Stone Age Problem ... https://codeforces.com/contest/1679/submission/157152636		2022-05-14 17:55:56 +08:00
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A	A - AvtoBus	2022-05-14 17:52:50 +08:00
B	B - Stone Age Problem	2022-05-14 17:55:56 +08:00