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21 12 21 13 21 14 21 15 21 16 21 17 21 18 21 19 21 20 21 21 21 22 21 23 21 24 21 25 21 26 21 27 58637 58636 58635 58634 58633 58632 58631 58630 58629 58628 58627 58626 58625 58624 58623

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