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79 7 79 8 79 9 80 0 80 1 80 2 80 3 80 4 80 5 80 6 80 7 2136 2135 2134 2133 2132 2131 2130 2129 2128 2127

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