4

U      -0.177691561099719     -0.089508401935904     -0.277135798408386
U       1.338300470360978      1.125715562388160      0.115864562975612
U       1.559885403162094     -0.297542548239200      1.664310824750570
U      -0.185742704050967      1.488440649173399      1.532777132345812