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42 9 43 0 43 1 43 2 43 3 43 4 43 5 43 6 43 7 43 8 43 9 44 0 44 1 44 2 44 3 44 4 1473 1472 1471 1470 1469 1468 1467 1466 1465 1464 1463 1462 1461 1460 1459

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