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27 72 27 73 27 74 27 75 27 76 27 77 27 78 27 79 27 80 27 81 27 82 3159 3158 3157 3156 3155 3154 3153 3152 3151 3150

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