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77 05 77 06 77 07 77 08 77 09 77 10 77 11 77 12 77 13 77 14 77 15 58712 58711 58710 58709 58708 58707 58706 58705 58704 58703

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