using System;

   namespace Problem08._Greater_of_Two_Values
   {
       internal class Program
       {
           public static void Main(string[] args)
           {
               string type = Console.ReadLine();

               if (type.Equals("int"))
               {
                   int a = int.Parse(Console.ReadLine());
                   int b = int.Parse(Console.ReadLine());
                   Console.WriteLine( GetMaxInt(a, b));

               }
                if (type.Equals("string"))
               {
                   string a = Console.ReadLine();
                   string b = Console.ReadLine();
                   Console.WriteLine(GetMaxString(a, b));
               }
                if (type.Equals("char"))
               {
                   char a =char.Parse( Console.ReadLine());
                   char b =char.Parse( Console.ReadLine());
                   Console.WriteLine(GetMaxChar(a, b));
               }



           }

           static int GetMaxInt(int a, int b)
           {
               if (a > b) {return a;}
               else {return b;}
           }

           static string GetMaxString(string a, string b)
           {
               if (a.Length > b.Length) {return a;}
               else {return b;}
           }

           static char GetMaxChar(char a, char b)
           {
               if ((int) a > (int) b) {return a;}
               else{ return b;}
           }
       }
   }