using System;
using System.Linq;
using System.Collections.Generic;

class Program
{
    /// <summary>
    /// プログラムのエントリポイント
    /// </summary>
    /// <param name="args"></param>
    static void Main(string[] args)
    {
        string s = Console.ReadLine();
        s = s.Replace("hamu", "1");
        s = s.Replace("ham", "0");

        int ans = Convert.ToInt32(s, 2) * 2;
        s = Convert.ToString(ans, 2);

        s = s.Replace("1", "hamu");
        s = s.Replace("0", "ham");

        Console.WriteLine(s);
    }
}