Solved by fbtngus2

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	313,406	2.58
1001	A-B STANDARD	269,051	1.44
2753	윤년 STANDARD	176,772	1.93
10998	A×B STANDARD	223,880	1.30
25304	영수증	73,936	1.80

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