using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        List<string> order1 = new List<string>() { "pepperoni", "mushroom" };

        List<string> order2 = new List<string>() { "onion", "pepperoni", "mushroom" };

        bool isEqual = order1.TrueForAll(x => order2.Contains(x));

        Console.WriteLine("Are the orders equal? " + isEqual);

    }

}