1  long long
       2  f (long long x)
       3  {
       4    return x / 10000000000LL;
       5  }
       6  
       7  main ()
       8  {
       9    if (f (10000000000LL) != 1 || f (100000000000LL) != 10)
      10      abort ();
      11    exit (0);
      12  }