void Hanoi(Stack<int> source, Stack<int> dest, Stack<int> temp,int N)
    {
        if (N > 0) {

            //move N-1 from source -> temp
            Hanoi(source, temp, dest, N - 1);

            //move bottom from source -> dest
            var data = source.Pop();
            dest.Push(data);

            //move N-1 from temp->dest
            Hanoi(temp, dest,source,N - 1);

        }
        Print(source, dest, temp);

    }