Solved by ljhgem

#	Title	# Solved	Avg. Tries
5597	Who have not handed in ?	70,929	1.94
10872	팩토리얼	84,783	1.79
10951	A+B - 4 STANDARD	138,376	2.76
11382	꼬마 정민 STANDARD	97,062	2.48
15552	빠른 A+B STANDARD	133,848	2.20

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