Solved by hyeondo

#	Title	# Solved	Avg. Tries
27323	직사각형	25,133	1.14
27866	문자와 문자열 STANDARD	63,355	1.48
28278	스택 2	15,057	2.69
28279	덱 2	8,715	1.98
28702	FizzBuzz	7,616	1.63
30802	Welcome Kit	11,638	1.88
31403	$A + B - C$	13,425	1.60

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