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71 7 71 8 71 9 72 0 72 1 72 2 72 3 72 4 72 5 72 6 72 7 72 8 72 9 73 0 73 1 73 2 73 3 73 4 73 5 73 6 73 7 73 8 73 9 74 0 74 1 74 2 74 3 74 4 74 5 74 6 74 7 11635 11634 11633 11632 11631 11630 11629 11628 11627 11626 11625 11624 11623 11622 11621 11620 11619 11618 11617 11616 11615 11614 11613 11612 11611 11610 11609 11608 11607 11606

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