using System;

using System.Collections.Generic;

using System.Linq;

​

namespace linq_ie_zip

{

    static class Program

    {

        static void Main(string[] args)

        {

            var j = ieInt32().Zip(ieString(), (e1, e2) => (e1, e2));

            // sample 1

            foreach (var z in j)

                z.print();

            // sample 2

            foreach (var (e1, e2) in j)

            {

                e1.print();

                e2.print();

            }

            // sample 3

            j.ToList().ForEach(z => z.print());

        }

​

        private static IEnumerable<int> ieInt32()

        {

            yield return 1;

            yield return 2;

            yield return 3;

        }

​

        private static IEnumerable<string> ieString()

        {

            yield return "первый";

            yield return "второй";

            yield return "третий";

        }

​

        private static void print(this object o) => Console.WriteLine(o.ToString());

    }

}

​