title
1.
0.000000000 2.715000000 2.715000000
2.715000000 0.000000000 2.715000000
2.715000000 2.715000000 0.000000000
2
Cartesian
0.000000000 0.000000000 0.000000000    Si
1.357500000 1.357500000 1.357500000    Si
