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72 63 72 64 72 65 72 66 72 67 72 68 72 69 72 70 72 71 72 72 72 73 8235 8234 8233 8232 8231 8230 8229 8228 8227 8226

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