using System;

public class Program

{

    public static void Main()

    {

        int[] a = {5,10,15,20,25};

        int[] b = {10,15,20,35,40};

        int[] c = new int[5];

        int[] d = new int[5];

        for (int i = 0, j = 0; i < a.Length; i++, j++)

        {

            c[i] = a[i]+b[j];

            d[i] = (a[i]+b[j])/2;

        }

        for (int i = 0; i < c.Length; i++)

        {

            Console.WriteLine("SUM:" + c[i]);

        }

        for (int i = 0; i < d.Length; i++)

        {

            Console.WriteLine("Average:" + d[i]);

        }

        Console.ReadLine();

    }

}