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66 3 66 4 66 5 66 6 66 7 66 8 66 9 67 0 67 1 67 2 67 3 67 4 67 5 67 6 67 7 67 8 412 411 410 409 408 407 406 405 404 403 402 401 400 399 398

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