Solved by gbstinyhippo

#	Title	# Solved	Avg. Tries
15650	N과 M (2) STANDARD	47,042	1.35
15651	N과 M (3) STANDARD	38,632	1.50
15652	N과 M (4) STANDARD	39,615	1.27
17298	오큰수	24,652	2.87

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