using System;

using System.Collections.Generic;       

​

public class Program

{

    public static void Main()

    {

        List<int> arr = new List<int>{1,2,3,4,5,6,7,8,9};

        foreach(int i in arr.FindAll(x => x > 3 && x < 8))

        Console.WriteLine(i);

    }

}