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52 77 5 52 77 6 52 77 7 52 77 8 52 77 9 52 78 0 52 78 1 52 78 2 52 78 3 52 78 4 52 78 5 16574 16573 16572 16571 16570 16569 16568 16567 16566 16565

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