Solved by fbtngus2

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	329,152	2.59
1001	A-B STANDARD	283,046	1.45
2753	윤년 STANDARD	187,538	1.94
10998	A×B STANDARD	236,387	1.30
25304	영수증	82,532	1.80

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