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53 82 7 53 82 8 53 82 9 53 83 0 53 83 1 53 83 2 53 83 3 53 83 4 53 83 5 53 83 6 53 83 7 15520 15519 15518 15517 15516 15515 15514 15513 15512 15511

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