Solved by jin0621050

#	Title	# Solved	Avg. Tries
27866	문자와 문자열 STANDARD	57,028	1.48
28278	스택 2	13,056	2.71
28702	FizzBuzz	5,749	1.61
30802	Welcome Kit	8,543	1.86
31403	$A + B - C$	10,033	1.58

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