public static void copy(ref Node<int> chain1,ref Node<int> temp)
    {
        while (chain1.GetNextNode() != null)
        {
            temp.SetNext(new Node<int>(chain1.GetNextNode().GetInfo()));
            temp = temp.GetNextNode();
            chain1 = chain1.GetNextNode();
        }
    }
    public static void stam(ref Node<int> chain1, ref Node<int> chain2)
    {
        Node<int> temp = new Node<int>(chain1.GetInfo(), null);
        Node<int> final1 = temp;
        copy(ref chain1, ref temp);
        Node<int> temp2 = new Node<int>(chain2.GetInfo(), chain2.GetNextNode());
        Node<int> final2 = temp2;
        copy(ref chain2, ref temp2);
        chain1 = final1;
        chain2 = final2;
    }