Solved by donghyun_lee

#	Title	# Solved	Avg. Tries
1010	다리 놓기	43,491	2.08
1149	RGB거리 STANDARD	53,177	1.78
2557	Hello World STANDARD	353,723	2.54
12865	평범한 배낭 STANDARD	36,729	2.76

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