Solved by zn7034

#	Title	# Solved	Avg. Tries
27866	문자와 문자열 STANDARD	58,149	1.48
28278	스택 2	13,354	2.71
28279	덱 2	7,766	2.00
28702	FizzBuzz	6,078	1.61
31403	$A + B - C$	10,648	1.59

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