Solved by shivvvpp

#	Title	# Solved	Avg. Tries
15651	N과 M (3) STANDARD	40,228	1.50
15652	N과 M (4) STANDARD	41,509	1.27
16953	A → B	21,874	2.51
20528	끝말잇기	1,660	1.42

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