// Driver Code
    public static void Main(string[] args)
    {
        TwoStacks ts = new TwoStacks(5);

        ts.push1(5);
        ts.push2(10);
        ts.push2(15);
        ts.push1(11);
        ts.push2(7);
        Console.WriteLine("Popped element from" + " stack1 is " + ts.pop1());
        ts.push2(40);
        Console.WriteLine("Popped element from" + " stack2 is " + ts.pop2());
    }