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78 12 78 13 78 14 78 15 78 16 78 17 78 18 78 19 78 20 78 21 78 22 78 23 78 24 78 25 78 26 78 27 58647 58646 58645 58644 58643 58642 58641 58640 58639 58638 58637 58636 58635 58634 58633

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