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72 2 72 3 72 4 72 5 72 6 72 7 72 8 72 9 73 0 73 1 73 2 2399 2398 2397 2396 2395 2394 2393 2392 2391 2390

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