Solved by wltlakdrh

#	Title	# Solved	Avg. Tries
1124	언더프라임	2,094	2.38
11047	동전 0	65,053	1.89
15770	QueryreuQ	138	3.55
16139	인간-컴퓨터 상호작용	5,689	3.44
16953	A → B	19,831	2.52

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