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88 60 88 61 88 62 88 63 88 64 88 65 88 66 88 67 88 68 88 69 88 70 6590 6589 6588 6587 6586 6585 6584 6583 6582 6581

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