Solved by risayu

#	Title	# Solved	Avg. Tries
2739	구구단 STANDARD	195,984	1.98
2741	N 찍기 STANDARD	137,328	1.74
2742	기찍 N	117,347	1.45
8393	Sum STANDARD	166,754	1.56
10950	A+B - 3 STANDARD	165,795	1.71
15552	빠른 A+B STANDARD	128,980	2.20

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