Solved by gkstmd1014

#	Title	# Solved	Avg. Tries
1016	제곱 ㄴㄴ 수	10,410	4.46
1008	A/B STANDARD	233,140	2.89
1001	A-B STANDARD	281,864	1.45
1000	A+B STANDARD	327,817	2.59

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