Solved by wltlakdrh

#	Title	# Solved	Avg. Tries
1124	언더프라임	2,353	2.32
11047	동전 0	69,845	1.88
15770	QueryreuQ	138	3.55
16139	인간-컴퓨터 상호작용	6,456	3.42
16953	A → B	22,199	2.51

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