4

Pb      0.042707301026827      0.285313252025542      0.123242161029637
Pb      1.746675175349589      1.450212281562038      0.018980741599330
Sn      1.666134014110002      0.111089292852596      1.378893630980263
Sn      0.071659224422620      1.604977135751470      1.639185228201823