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51 8 51 9 52 0 52 1 52 2 52 3 52 4 52 5 52 6 52 7 52 8 1169 1168 1167 1166 1165 1164 1163 1162 1161 1160

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