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52 12 52 13 52 14 52 15 52 16 52 17 52 18 52 19 52 20 52 21 52 22 52 23 52 24 52 25 52 26 52 27 58667 58666 58665 58664 58663 58662 58661 58660 58659 58658 58657 58656 58655 58654 58653

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