using System;

public class Program

{

    public static void Main()

    {

        var r = new Random();

        var fruits = new[]{ "Apple", "Banana", "Grapes", "Orange", "Cherry", "Mango" };

​

        for (int i=fruits.Length-1;i>0;i--)

        {

            var temp = fruits[i];

            var index = r.Next(0, i);

            fruits[i] = fruits[index];

            fruits[index] = temp;

        }

​

        for (int i = 0; i<4; i++)

        {

           Console.WriteLine(fruits[i]);

        }

    }

}