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72 60 72 61 72 62 72 63 72 64 72 65 72 66 72 67 72 68 72 69 72 70 8211 8210 8209 8208 8207 8206 8205 8204 8203 8202

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