Solved by khs121401

#	Title	# Solved	Avg. Tries
10869	사칙연산 STANDARD	225,955	2.23
10871	X보다 작은 수 STANDARD	153,067	1.84
10950	A+B - 3 STANDARD	165,263	1.71
10951	A+B - 4 STANDARD	132,573	2.77
10952	A+B - 5 STANDARD	144,029	1.90
10998	A×B STANDARD	228,515	1.30
11021	A+B - 7 STANDARD	136,567	2.04
11022	A+B - 8 STANDARD	132,395	1.47
11653	소인수분해	53,462	1.86
11654	아스키 코드 STANDARD	120,754	1.23
11720	숫자의 합 STANDARD	128,824	1.79
15829	Hashing	18,914	3.33
25083	새싹 STANDARD	71,936	1.89
27866	문자와 문자열 STANDARD	55,981	1.48
30802	Welcome Kit	8,016	1.86
31403	$A + B - C$	9,457	1.58

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