Solved by ljhgem

#	Title	# Solved	Avg. Tries
5597	Who have not handed in ?	70,451	1.94
10872	팩토리얼	84,635	1.79
10951	A+B - 4 STANDARD	137,823	2.76
11382	꼬마 정민 STANDARD	96,015	2.47
15552	빠른 A+B STANDARD	133,346	2.20

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