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53 29 53 30 53 31 53 32 53 33 53 34 53 35 53 36 53 37 53 38 53 39 37380 37379 37378 37377 37376 37375 37374 37373 37372 37371

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