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55 20 2 55 20 3 55 20 4 55 20 5 55 20 6 55 20 7 55 20 8 55 20 9 55 21 0 55 21 1 55 21 2 55 21 3 55 21 4 55 21 5 55 21 6 55 21 7 13857 13856 13855 13854 13853 13852 13851 13850 13849 13848 13847 13846 13845 13844 13843

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