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61 70 8 61 70 9 61 71 0 61 71 1 61 71 2 61 71 3 61 71 4 61 71 5 61 71 6 61 71 7 61 71 8 61 71 9 61 72 0 61 72 1 61 72 2 61 72 3 61 72 4 61 72 5 61 72 6 61 72 7 61 72 8 61 72 9 61 73 0 469 468 467 466 465 464 463 462 461 460 459 458 457 456 455 454 453 452 451 450 449 448

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