Solved by mjh3044

#	Title	# Solved	Avg. Tries
2739	구구단 STANDARD	194,279	1.97
8393	Sum STANDARD	165,538	1.56
10871	X보다 작은 수 STANDARD	152,256	1.84
10950	A+B - 3 STANDARD	164,375	1.71

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