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91 9 92 0 92 1 92 2 92 3 92 4 92 5 92 6 92 7 92 8 92 9 2401 2400 2399 2398 2397 2396 2395 2394 2393 2392

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