Solved by 07skyjh

#	Title	# Solved	Avg. Tries
14681	Quadrant Selection STANDARD	158,308	1.64
15552	빠른 A+B STANDARD	130,570	2.20
18108	1998년생인 내가 태국에서는 2541년생?!	128,080	1.57
18870	좌표 압축	35,732	2.51

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