4

Ar      0.202708148694938      0.278983467138537      0.218233272897999
Ar      0.651599774668996      0.538350974621325      0.280251752769029
Ar      0.717181026953033      0.011004784626425      0.524542267482975
Ar      0.052155886734394      0.467860223999025      0.503433506982618