using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var fruit = new List<string>() { "Apples", "Pears", "Oranges", "Cherries" };

        var nuts = new List<string>() { "Pecans", "Walnuts", "Sunflower Seeds", "Peanuts" };

        var toppings = new List<string>() { "Cream", "Milk", "Honey", "Jam", "Spread" };

​

        var trailMix = fruit

            .Interleave(nuts)

            .Interleave(toppings);

​

        foreach (var ingredient in trailMix)

        {

            Console.WriteLine(ingredient);

        }

    }   

}