4

As      0.218639107500468     -0.226471086671914      0.236246199513629
As      1.263224584162285      1.323869249748162      0.093250055668870
As      1.439263300215592     -0.186173913215200      1.508822944696599
As     -0.225651986543876      1.608780367646714      1.778524944537516