using System;

​

public class Program

{

    public static void Main()

    {

        int[] a = {2, 2, 2, 2, 3, 2, 4, 2};

        int[] b = {1, 1, 3, 2, 4, 3, 2, 3, 5};

        int c;

        if (a.Length < b.Length)

            c = a.Length;

        else

            c = b.Length;

        double[] atlagok = new double[c];

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

        {

            atlagok[i] = (double)(a[i] + b[i]) / 2;

            Console.WriteLine("{0}. számok átlaga:{1}", i + 1, atlagok[i]);

        }

    }

}