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90 95 90 96 90 97 90 98 90 99 91 00 91 01 91 02 91 03 91 04 91 05 6193 6192 6191 6190 6189 6188 6187 6186 6185 6184

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