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18 56 0 18 56 1 18 56 2 18 56 3 18 56 4 18 56 5 18 56 6 18 56 7 18 56 8 18 56 9 18 57 0 18 57 1 18 57 2 18 57 3 18 57 4 18 57 5 18 57 6 18 57 7 18 57 8 18 57 9 18 58 0 18 58 1 18 58 2 28170 28169 28168 28167 28166 28165 28164 28163 28162 28161 28160 28159 28158 28157 28156 28155 28154 28153 28152 28151 28150 28149

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