Solved by elroykr

#	Title	# Solved	Avg. Tries
17413	단어 뒤집기 2	15,863	1.76
25083	새싹 STANDARD	72,681	1.89
27866	문자와 문자열 STANDARD	56,931	1.48
31403	$A + B - C$	9,986	1.58

123