Solved by wlsduddk

#	Title	# Solved	Avg. Tries
1018	체스판 다시 칠하기	55,404	2.00
1008	A/B STANDARD	227,714	2.90
1001	A-B STANDARD	275,989	1.44
1000	A+B STANDARD	321,286	2.59

1345