using System;

namespace y
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] ss = Console.ReadLine().Split();
            string ans = "";
            if (ss[0] == ss[1])
            {
                ans = ss[0] + " " + ss[1];
            }
            else
            {
                ans = ss[0] == "F" ? "T" : "F";
                ans += ss[1] == "F" ? "T" : "F";
            }
            Console.WriteLine(ans);
        }
    }
}