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

namespace template
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            string[] s1 = Console.ReadLine().Split();
            string[] s2 = Console.ReadLine().Split();
            for (int i = 0; i < n; i++)
            {
                if (s1[i] != s2[i])
                {
                    Console.WriteLine(i + 1);
                    Console.WriteLine(s1[i]);
                    Console.WriteLine(s2[i]);
                }
            }
        }
    }
}