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15 22 2 15 22 3 15 22 4 15 22 5 15 22 6 15 22 7 15 22 8 15 22 9 15 23 0 15 23 1 15 23 2 15 23 3 15 23 4 15 23 5 15 23 6 15 23 7 53016 53015 53014 53013 53012 53011 53010 53009 53008 53007 53006 53005 53004 53003 53002

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid