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90 09 90 10 90 11 90 12 90 13 90 14 90 15 90 16 90 17 90 18 90 19 6443 6442 6441 6440 6439 6438 6437 6436 6435 6434

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