Solved by ksk0076

#	Title	# Solved	Avg. Tries
27433	팩토리얼 2	16,235	2.09
27866	문자와 문자열 STANDARD	57,559	1.48
28278	스택 2	13,202	2.70
30802	Welcome Kit	8,803	1.87
30804	Fruit Tanghulu	3,099	2.94
31403	$A + B - C$	10,337	1.58

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