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87 40 87 41 87 42 87 43 87 44 87 45 87 46 87 47 87 48 87 49 87 50 9211 9210 9209 9208 9207 9206 9205 9204 9203 9202

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