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70 9 71 0 71 1 71 2 71 3 71 4 71 5 71 6 71 7 71 8 71 9 2460 2459 2458 2457 2456 2455 2454 2453 2452 2451

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