4

Nh      0.269762016431877      0.332603344773414      0.042152897508079
Nh      1.701259006819736      1.548772094863850      0.219318968704678
Nh      1.492240572860706     -0.050686057243614      1.267021580605541
Nh      0.042802679860809      1.614375809268183      1.341172704628701