using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace yukicoderTest
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            string[] input2 = Console.ReadLine().Split(' ') ;
            string[] input3 = Console.ReadLine().Split(' ');
            int wrong = -1;
            for(int i=0;i<input2.Length;i++)
            {
                if(input2[i]!=input3[i])
                {
                    wrong = i+1;
                }
            }
            Console.WriteLine(wrong);
            Console.WriteLine(input2[wrong-1]);
            Console.WriteLine(input3[wrong-1]);
        }
    }
}