using System;

​

public class ClosureExample

{

    public static Func<int, int> CreateAdder(int x)

    {

        return y => x + y;

    }

​

    public static void Main(string[] args)

    {

        var add5 = CreateAdder(5);

        Console.WriteLine(add5(3)); // Output: 8

        Console.WriteLine(add5(15));  // Output: 20

        Console.WriteLine(add5(6));  // Output: 11

    }

}