Solved by lhbj1115

#	Title	# Solved	Avg. Tries
27866	문자와 문자열 STANDARD	59,023	1.48
28702	FizzBuzz	6,304	1.62
30802	Welcome Kit	9,449	1.87
30804	Fruit Tanghulu	3,274	2.93
30805	Lexicographically Largest Common Subsequence	1,198	3.19
31403	$A + B - C$	11,042	1.59

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