Solved by s4n9hyun

#	Title	# Solved	Avg. Tries
30805	Lexicographically Largest Common Subsequence	1,270	3.19
30957	빅데이터 vs 정보보호 vs 인공지능	700	1.51
30958	서울사이버대학을 다니고	777	1.28

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