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89 0 89 1 89 2 89 3 89 4 89 5 89 6 89 7 89 8 89 9 90 0 1485 1484 1483 1482 1481 1480 1479 1478 1477 1476

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