Solved by hs85037822

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	323,352	2.59
1001	A-B STANDARD	277,855	1.45
10171	Cats STANDARD	185,239	2.80
10869	사칙연산 STANDARD	229,157	2.24
10998	A×B STANDARD	231,763	1.30
11382	꼬마 정민 STANDARD	91,848	2.48

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