Solved by risayu

#	Title	# Solved	Avg. Tries
2739	구구단 STANDARD	202,904	1.98
2741	N 찍기 STANDARD	140,280	1.74
2742	기찍 N	118,320	1.45
8393	Sum STANDARD	172,263	1.56
10950	A+B - 3 STANDARD	172,280	1.71
15552	빠른 A+B STANDARD	133,937	2.20

1