Solved by se0t00l

#	Title	# Solved	Avg. Tries
15649	N과 M (1) STANDARD	53,700	1.58
15650	N과 M (2) STANDARD	50,286	1.35
15651	N과 M (3) STANDARD	40,920	1.50
15652	N과 M (4) STANDARD	42,328	1.27

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