Solved by donghyun_lee

#	Title	# Solved	Avg. Tries
1010	다리 놓기	42,086	2.09
1149	RGB거리 STANDARD	51,638	1.79
2557	Hello World STANDARD	346,778	2.54
12865	평범한 배낭 STANDARD	35,242	2.76

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