using System;

​

​

public class Test

{

    public static void Main()

    {

        Console.Write("Please enter integer number :");

        int a = Convert.ToInt32(Console.ReadLine());

        double[] n = new double[a];

        int c=0;

        while(c<a)

        {

            Console.Write("input n{0} : ",c+1);

            n[c] = Convert.ToInt32(Console.ReadLine());

            c++;

        }

        Console.WriteLine(" ");

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

            if(i%5==0)

                Console.Write("Result = {0} ",i);

    }

}