using System;

using System.Linq;

​

namespace test

{

    public class Program

    {

        public static void Main(string[] args)

        {

            int[] nums = { 4, 1, 7, 5, 9, 6, 2 };

            var query = nums.Where(n => n > 4)

                .Select(n => n.ToString());

​

            foreach (string s in query)

                Console.Write(s);

        }

    }

}

​