Si 
 1.0000000000000000
     6.6443950040235187   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.6443950040235187    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.6443950040235187
 Si 
  16
Selective dynamics
Cartesian
  0.6696099694502020  0.6696099694502020  0.6696099694502020   T   T   T
  2.6525875325615584  5.9747850345733173  3.9918074714619625   T   T   T
  5.9747850345733173  3.9918074714619625  2.6525875325615584   T   T   T
  3.9918074714619625  2.6525875325615584  5.9747850345733173   T   T   T
  3.9918074714619625  3.9918074714619625  3.9918074714619625   T   T   T
  5.9747850345733173  2.6525875325615584  0.6696099694502019   T   T   T
  2.6525875325615584  0.6696099694502020  5.9747850345733173   T   T   T
  0.6696099694502020  5.9747850345733173  2.6525875325615584   T   T   T
  5.9747850345733173  5.9747850345733173  5.9747850345733173   T   T   T
  3.9918074714619625  0.6696099694502019  2.6525875325615584   T   T   T
  0.6696099694502020  2.6525875325615584  3.9918074714619625   T   T   T
  2.6525875325615584  3.9918074714619625  0.6696099694502019   T   T   T
  2.6525875325615584  2.6525875325615584  2.6525875325615584   T   T   T
  0.6696099694502020  3.9918074714619625  5.9747850345733173   T   T   T
  3.9918074714619625  5.9747850345733173  0.6696099694502019   T   T   T
  5.9747850345733173  0.6696099694502020  3.9918074714619625   T   T   T