Solved by hs020303

#	Title	# Solved	Avg. Tries
27323	직사각형	23,673	1.15
27433	팩토리얼 2	16,784	2.09
27866	문자와 문자열 STANDARD	59,764	1.48
28278	스택 2	13,876	2.70
28279	덱 2	8,099	1.99
28702	FizzBuzz	6,542	1.62
30802	Welcome Kit	9,867	1.87
31403	$A + B - C$	11,463	1.59

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