using System;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        int[] first = Console.ReadLine().Split().Select(int.Parse).ToArray();

        int[] second = Console.ReadLine().Split().Select(int.Parse).ToArray();

        int sum = 0;

        int index;

        bool identical = true;

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

        {

            if (first[i] != second[i])

            {

                index = i;

                identical = false;

            }

            else

            {

                sum += first[i];

            }

        }

​

        if (identical = false)

        {

            Console.WriteLine("Arrays are not identical. Found difference at {0} index", index);

        }

        else

        {

            Console.WriteLine("Arrays are identical. Sum: {0}", sum);

        }

    }

}