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17 90 2 17 90 3 17 90 4 17 90 5 17 90 6 17 90 7 17 90 8 17 90 9 17 91 0 17 91 1 17 91 2 17 91 3 17 91 4 17 91 5 17 91 6 17 91 7 50637 50636 50635 50634 50633 50632 50631 50630 50629 50628 50627 50626 50625 50624 50623

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