 C Si
   1.0
     3.0777596100000002    0.0000000000000000    0.0000000000000000
    -1.5388797999999999    2.6654180099999998    0.0000000000000000
     0.0000000000000000    0.0000000000000000    5.0497398000000002
 C Si
   2   2
Direct
   0.3333333300000000  0.6666666700000000  0.8754354700000000
   0.6666666700000000  0.3333333300000000  0.3754354700000000
   0.3333333300000000  0.6666666700000000  0.4995645300000000
   0.6666666700000000  0.3333333300000000  0.9995645300000000