Solved by jeonghj419z

#	Title	# Solved	Avg. Tries
11720	숫자의 합 STANDARD	127,028	1.78
11721	열 개씩 끊어 출력하기 STANDARD	37,197	1.79
14681	Quadrant Selection STANDARD	153,669	1.64
15552	빠른 A+B STANDARD	126,950	2.20

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