Solved by fbtngus2

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	302,980	2.57
1001	A-B STANDARD	259,695	1.44
2753	윤년 STANDARD	169,688	1.93
10998	A×B STANDARD	215,498	1.30
25304	영수증	68,467	1.79

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