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81 50 81 51 81 52 81 53 81 54 81 55 81 56 81 57 81 58 81 59 81 60 9725 9724 9723 9722 9721 9720 9719 9718 9717 9716

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