Public static Summer (Stack <int> S1, Stack <int> S2)
{
int count, sum1 = 0; sum2 = 0, a,b,c,d;
bool flag;
Stack <int> temp = new Stack <int>();'

While (S1.IsEmpty() && flag == true)
    {
        flag = true;
        a = S1.Pop();
        b = S1.Top();'
        sum1 = a + b;

        While (!S2.IsEmpty())
        {
            c = S2.Pop();
            d = s2.Top();
            sum2 = c+d;
            if ( sum2 > sum1)
                flag = false;
            temp.Push(C);
            }
            While (!temp.IsEmpty())
                S2.Push(temp.Pop());

            if (flag)
                 return sum1;
        }
return 0;
}