Solved by won2765

#	Title	# Solved	Avg. Tries
27323	직사각형	24,938	1.14
27433	팩토리얼 2	17,687	2.09
27866	문자와 문자열 STANDARD	62,891	1.48
28278	스택 2	14,951	2.69
28279	덱 2	8,630	1.99
30802	Welcome Kit	11,439	1.87
31403	$A + B - C$	13,173	1.60

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