1  main ()
       2  {
       3    int i;
       4    for (i = 100;  i >= -1; i--)
       5      foo ();
       6  
       7  }
       1  main ()
       2  {
       3    int i;
       4    for (i = 100;  i >= -1; i--)
       5      foo ();
       6  
       7  }