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27 55 1 27 55 2 27 55 3 27 55 4 27 55 5 27 55 6 27 55 7 27 55 8 27 55 9 27 56 0 27 56 1 27 56 2 27 56 3 27 56 4 27 56 5 27 56 6 18497 18496 18495 18494 18493 18492 18491 18490 18489 18488 18487 18486 18485 18484 18483

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