Solved by cute_polar_bear

#	Title	# Solved	Avg. Tries
14681	Quadrant Selection STANDARD	151,917	1.64
15552	빠른 A+B STANDARD	125,650	2.20
15964	이상한 기호 STANDARD	17,672	1.80
25083	새싹 STANDARD	69,267	1.89
27866	문자와 문자열 STANDARD	52,192	1.48
30802	Welcome Kit	6,121	1.83
31403	$A + B - C$	7,412	1.56

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