Solved by rudghks94

#	Title	# Solved	Avg. Tries
15652	N과 M (4) STANDARD	40,240	1.27
15654	N과 M (5) STANDARD	26,269	1.38
15655	N과 M (6) STANDARD	17,867	1.19
15686	치킨 배달	30,025	2.16
16113	시그널	772	3.11
16953	A → B	21,030	2.51
17298	오큰수	25,090	2.87

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