using System;

public class Program

{

    public static void Main()

    {

         int[] a = new int[] { 3, 5, 3, 2, 1 };

         int[] b = new int[] { 1, 2, 3, 4, 5, 6 };

​

        /*

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

            {

                for (int j = 0; j < b.Length; j++)

                {

                    if (i % 2 != 0 && j % 2 != 0 && i == j)

                    {

                        var q = a[i];

                        var w = b[j];

                        a[i] = w;

                        b[j] = q;

                    }

                }

            }

        */

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

         {

             if (i % 2 != 0)

             {

                  int q = a[i];

                  a[i] = b[i];

                  b[i] = q;

             }

         }

         int number1 = Convert.ToInt32(string.Join("", a));

         int number2 = Convert.ToInt32(string.Join("", b));

​

         Console.WriteLine("Output for first array:  \t" + number1);

         Console.WriteLine("Output for second array: \t" + number2);

    }

}