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53 5 53 6 53 7 53 8 53 9 54 0 54 1 54 2 54 3 54 4 54 5 54 6 54 7 54 8 54 9 55 0 1453 1452 1451 1450 1449 1448 1447 1446 1445 1444 1443 1442 1441 1440 1439

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