Solved by cho2160

#	Title	# Solved	Avg. Tries
27433	팩토리얼 2	16,587	2.09
27866	문자와 문자열 STANDARD	59,115	1.48
28278	스택 2	13,663	2.70
28279	덱 2	7,928	2.00
28702	FizzBuzz	6,350	1.62
30802	Welcome Kit	9,516	1.87
31403	$A + B - C$	11,076	1.59

145678