Solved by ppp6131

#	Title	# Solved	Avg. Tries
17626	Four Squares	11,415	2.29
18110	solved.ac	9,512	4.00
18111	마인크래프트	14,346	4.19
18870	좌표 압축	33,621	2.52
21736	헌내기는 친구가 필요해	6,851	1.67
25083	새싹 STANDARD	69,589	1.89
27866	문자와 문자열 STANDARD	52,617	1.48
28702	FizzBuzz	4,317	1.59
30802	Welcome Kit	6,353	1.84
30804	Fruit Tanghulu	2,239	2.93
31403	$A + B - C$	7,671	1.56

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