Solved by hyeonski

#	Title	# Solved	Avg. Tries
28490	Area	842	1.13
28702	FizzBuzz	6,654	1.62
30214	An Easy-Peasy Problem	1,858	1.46
30802	Welcome Kit	10,003	1.87
30804	Fruit Tanghulu	3,463	2.94
31403	$A + B - C$	11,618	1.59
31867	홀짝홀짝	1,032	1.46

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