Solved by shivvvpp

#	Title	# Solved	Avg. Tries
15651	N과 M (3) STANDARD	35,787	1.49
15652	N과 M (4) STANDARD	36,281	1.27
16953	A → B	18,345	2.52
20528	끝말잇기	1,450	1.43

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