public class Program
{
    public static void Main()
    {
        int num = int.Parse(Console.ReadLine() ?? string.Empty);
        string[] str = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        string[] str2 = (Console.ReadLine() ?? string.Empty).Trim().Split(' ');
        //string str = Console.ReadLine() ?? string.Empty;

        for (int i = 0; i < num; i++)
        {
            if (str[i] != str2[i])
            {
                Console.WriteLine(i + 1);
                Console.WriteLine(str[i]);
                Console.WriteLine(str2[i]);
            }
        }
    }
}