Solved by jjoyul

#	Title	# Solved	Avg. Tries
26647	알프스 케이블카 2	32	7.59
27400	Restore Array	30	3.67
27412	Matrix	5	2.60
27469	Moving the Queen	41	2.54
27470	Cool Subset	87	6.77
27471	Sigma Sigma Sigma Sigma	83	2.52
27490	Moving Dots	67	1.18
27491	Sum Over Zero	42	1.98

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