Solved by shp101

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	302,733	2.57
1001	A-B STANDARD	259,476	1.44
1475	방 번호	24,191	2.26
1874	스택 수열	45,050	2.62
2557	Hello World STANDARD	335,345	2.54
9012	Parenthesis	73,111	2.17
10773	Zero That Out	54,402	1.47
17298	오큰수	22,456	2.91
28278	스택 2	9,636	2.71

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