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37 40 37 41 37 42 37 43 37 44 37 45 37 46 37 47 37 48 37 49 37 50 37 51 37 52 37 53 37 54 37 55 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42

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