Solved by dasuks

#	Title	# Solved	Avg. Tries
1000	A+B STANDARD	326,404	2.59
1001	A-B STANDARD	280,574	1.45
2557	Hello World STANDARD	360,538	2.54
4949	The Balance of the World	42,534	3.04
9012	Parenthesis	81,199	2.15
10773	Zero That Out	61,679	1.46
28278	스택 2	14,008	2.70

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