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77 34 77 35 77 36 77 37 77 38 77 39 77 40 77 41 77 42 77 43 77 44 7673 7672 7671 7670 7669 7668 7667 7666 7665 7664

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