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27 3 27 4 27 5 27 6 27 7 27 8 27 9 28 0 28 1 28 2 28 3 28 4 28 5 28 6 28 7 28 8 3845 3844 3843 3842 3841 3840 3839 3838 3837 3836 3835 3834 3833 3832 3831

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