Solved by ping378

#	Title	# Solved	Avg. Tries
28702	FizzBuzz	7,598	1.63
30802	Welcome Kit	11,529	1.88
30993	자동차 주차	511	1.33
31403	$A + B - C$	13,372	1.60
31575	도시와 비트코인	565	3.02

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