Solved by connect_sh

#	Title	# Solved	Avg. Tries
10869	사칙연산 STANDARD	230,881	2.24
10172	Dogs STANDARD	182,247	2.33
1008	A/B STANDARD	231,103	2.90
1001	A-B STANDARD	279,703	1.45
1000	A+B STANDARD	325,362	2.59

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