Solved by once29

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#Level Title # Solved Avg. Tries Random

#	Title	# Solved	Avg. Tries
11721	열 개씩 끊어 출력하기 STANDARD	38,020	1.79
11726	2×n 타일링	57,775	2.71
11727	2×n 타일링 2	41,965	1.71