00(int a, int b)  {    long long res;    if (!VERIFY_SHORT(a) || !VERIFY_SHORT(b))    {       fprintf (stderr, "MULT00_00_Q00: inputs are not short: %d %d\n", a, b);    }    res = ((long long)a)*b;    res >>= 00;    if (!VERIFY_INT(res))       fprintf (stderr, "MULT00_00_Q00: output is not short: %d*%d=%d\n", 