Solved by dongdong40

#	Title	# Solved	Avg. Tries
2438	별 찍기 - 1 STANDARD	185,783	1.61
2558	A+B - 2 STANDARD	76,062	1.38
9498	시험 성적 STANDARD	205,837	1.83
10869	사칙연산 STANDARD	228,547	2.24
27866	문자와 문자열 STANDARD	57,801	1.48
31403	$A + B - C$	10,484	1.58

1