nt     my_strcmp(char *s1, char *s2)
{
  int   i;

  i = 0;
  while (s1[i] && s2[i])
    {
      if (s1[i] != s2[i])
        return (s1[i] - s2[i]);
      i++;
      if (!(s1[i]) || !(s2[i]))
        return (s1[i] - s2[i]);
    }
  return (0);
}