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47 7 47 8 47 9 48 0 48 1 48 2 48 3 48 4 48 5 48 6 48 7 48 8 48 9 49 0 49 1 49 2 1481 1480 1479 1478 1477 1476 1475 1474 1473 1472 1471 1470 1469 1468 1467

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