using System;

namespace ConsoleApp331
{
    class Program
    {
        static void Main(string[] args)
        {

            string input = Console.ReadLine();
            if (input == "int")
            {
                TestTheInputForInt(input);
            }
            else if (input == "char")
            {
                TestTheInputForChar(input);
            }
            else if (input == "string")
            {
                TestTheInputForString(input);
            }

        }
        private static void TestTheInputForInt(string input)
        {

                int nomer1 = int.Parse(Console.ReadLine());
                int nomer2 = int.Parse(Console.ReadLine());

                int min = Math.Min(nomer1, nomer2);
                int max = Math.Max(nomer1, nomer2);

                Console.WriteLine(max);
        }
        private static void TestTheInputForChar(string input)
        {
                char char1 = char.Parse(Console.ReadLine());
                char char2 = char.Parse(Console.ReadLine());

                if (char1 > char2)
                {
                    Console.WriteLine(char1);
                }
                else
                {
                    Console.WriteLine(char2);
                }
        }
        private static void TestTheInputForString(string input)
            {
                    string purvoIme = Console.ReadLine();
                    string vtoroIme = Console.ReadLine();

                    int duljinaNaString = purvoIme.Length;
                    int duljinaNa2String = vtoroIme.Length;

                    if (duljinaNaString > duljinaNa2String)
                    {
                        Console.WriteLine(purvoIme);
                    }
                    else
                    {
                        Console.WriteLine(vtoroIme);
                    }
            }
    }
}