Solved by jhsnotnull

#	Title	# Solved	Avg. Tries
27323	직사각형	21,814	1.15
27433	팩토리얼 2	15,497	2.09
27866	문자와 문자열 STANDARD	55,085	1.48
28278	스택 2	12,453	2.71
28279	덱 2	7,184	2.01

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