Solved by alfred_walker

#	Title	# Solved	Avg. Tries
13241	LCM	14,469	1.59
15552	빠른 A+B STANDARD	130,500	2.20
15649	N과 M (1) STANDARD	51,391	1.58
18108	1998년생인 내가 태국에서는 2541년생?!	127,993	1.57

1345