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87 12 87 13 87 14 87 15 87 16 87 17 87 18 87 19 87 20 87 21 87 22 87 23 87 24 87 25 87 26 87 27 9197 9196 9195 9194 9193 9192 9191 9190 9189 9188 9187 9186 9185 9184 9183

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