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27 97 27 98 27 99 28 00 28 01 28 02 28 03 28 04 28 05 28 06 28 07 3128 3127 3126 3125 3124 3123 3122 3121 3120 3119

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