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56 20 9 56 21 0 56 21 1 56 21 2 56 21 3 56 21 4 56 21 5 56 21 6 56 21 7 56 21 8 56 21 9 56 22 0 56 22 1 56 22 2 56 22 3 56 22 4 56 22 5 56 22 6 56 22 7 56 22 8 56 22 9 56 23 0 56 23 1 12490 12489 12488 12487 12486 12485 12484 12483 12482 12481 12480 12479 12478 12477 12476 12475 12474 12473 12472 12471 12470 12469

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