Solved by hyunmin_29

#	Title	# Solved	Avg. Tries
1309	동물원	14,543	2.13
1431	시리얼 번호	7,950	1.76
2231	Digit Generator	58,536	2.20
2588	곱셈 STANDARD	158,784	2.14
7568	덩치	48,846	1.78

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