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89 6 89 7 89 8 89 9 90 0 90 1 90 2 90 3 90 4 90 5 90 6 2178 2177 2176 2175 2174 2173 2172 2171 2170 2169

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