Solved by gytjdttop

#	Title	# Solved	Avg. Tries
31403	$A + B - C$	9,904	1.58
31506	ABC String	36	1.50
31507	Acceptable Seating Arrangements	13	1.46
32034	동전 쌍 뒤집기	194	2.41
32408	대전 도시철도 2호선	50	1.98
32597	Concurrent Contests	14	2.07

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