C Si 
 1.0000000000000000
     3.0261355269847923    0.0000000000000000   -0.0000000000000000
    -1.5130677634923961    2.6207102416634402   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000   51.8874155357516500
 C   Si 
  21  21
Selective dynamics
Cartesian
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 -0.0000000000000000 -0.0000000000000000 38.9155717007108564   T   T   T
 -0.0000000000000000 -0.0000000000000000  9.2656199657839604   T   T   T
 -0.0000000000000000 -0.0000000000000000 46.3280596343415212   T   T   T
 -0.0000000000000000 -0.0000000000000000 16.6781079001823827   T   T   T
 -0.0000000000000000 -0.0000000000000000 31.5030837671233783   T   T   T
 -0.0000000000000000 -0.0000000000000000 24.0905958329722978   T   T   T
 -0.0000000000000016  1.7471401611089596 36.4447423892613855   T   T   T
 -0.0000000000000016  1.7471401611089596 48.7988889452251016   T   T   T
 -0.0000000000000016  1.7471401611089596 43.8572303233989018   T   T   T
 -0.0000000000000016  1.7471401611089596 26.5614251442136471   T   T   T
 -0.0000000000000016  1.7471401611089596 21.6197665222472715   T   T   T
 -0.0000000000000016  1.7471401611089596 11.7364492765770638   T   T   T
 -0.0000000000000016  1.7471401611089596  6.7947906549096446   T   T   T
  1.5130677634923948  0.8735700805544798  4.3239613442115559   T   T   T
  1.5130677634923948  0.8735700805544798 51.2697182565262324   T   T   T
  1.5130677634923948  0.8735700805544798 41.3864010120663437   T   T   T
  1.5130677634923948  0.8735700805544798 33.9739130784291135   T   T   T
  1.5130677634923948  0.8735700805544798 29.0322544556737299   T   T   T
  1.5130677634923948  0.8735700805544798 19.1489372112945837   T   T   T
  1.5130677634923948  0.8735700805544798 14.2072785881181627   T   T   T
 -0.0000000000000000 -0.0000000000000000  0.0000100486276461   T   T   T
 -0.0000000000000000 -0.0000000000000000 37.0624497170450624   T   T   T
 -0.0000000000000000 -0.0000000000000000 29.6499617835229863   T   T   T
 -0.0000000000000000 -0.0000000000000000 44.4749376512070498   T   T   T
 -0.0000000000000000 -0.0000000000000000  7.4124979824387092   T   T   T
 -0.0000000000000000 -0.0000000000000000 22.2374738498236546   T   T   T
 -0.0000000000000000 -0.0000000000000000 14.8249859164069040   T   T   T
 -0.0000000000000016  1.7471401611089596 34.5916204060465944   T   T   T
 -0.0000000000000016  1.7471401611089596 42.0041083398610411   T   T   T
 -0.0000000000000016  1.7471401611089596 24.7083031606056132   T   T   T
 -0.0000000000000016  1.7471401611089596  4.9416686719023035   T   T   T
 -0.0000000000000016  1.7471401611089596 46.9457669618094897   T   T   T
 -0.0000000000000016  1.7471401611089596  9.8833272933872429   T   T   T
 -0.0000000000000016  1.7471401611089596 19.7666445389836163   T   T   T
  1.5130677634923948  0.8735700805544798 17.2958152279746997   T   T   T
  1.5130677634923948  0.8735700805544798 12.3541566043184723   T   T   T
  1.5130677634923948  0.8735700805544798  2.4708393605205026   T   T   T
  1.5130677634923948  0.8735700805544798 27.1791324721978107   T   T   T
  1.5130677634923948  0.8735700805544798 32.1207910950205715   T   T   T
  1.5130677634923948  0.8735700805544798 39.5332790286480673   T   T   T
  1.5130677634923948  0.8735700805544798 49.4165962731068191   T   T   T