Solved by yeon_i

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	332,195	2.59
1001	A-B STANDARD	285,578	1.45
1008	A/B STANDARD	236,471	2.90
2557	Hello World STANDARD	367,111	2.54
10869	사칙연산 STANDARD	236,319	2.24
10926	??! STANDARD	141,500	1.99
10998	A×B STANDARD	238,721	1.30

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