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21 38 21 39 21 40 21 41 21 42 21 43 21 44 21 45 21 46 21 47 21 48 3758 3757 3756 3755 3754 3753 3752 3751 3750 3749

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