Solved by takecho

#	Title	# Solved	Avg. Tries
31403	$A + B - C$	6,215	1.56
27866	문자와 문자열 STANDARD	50,436	1.47
9498	시험 성적 STANDARD	196,667	1.82
2558	A+B - 2 STANDARD	73,436	1.38
2557	Hello World STANDARD	342,167	2.54

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