Solved by fbtngus2

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	322,308	2.59
1001	A-B STANDARD	276,893	1.44
2753	윤년 STANDARD	182,810	1.94
10998	A×B STANDARD	230,892	1.30
25304	영수증	78,760	1.80

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