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89 31 89 32 89 33 89 34 89 35 89 36 89 37 89 38 89 39 89 40 89 41 6540 6539 6538 6537 6536 6535 6534 6533 6532 6531

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