#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<n;i++)
//#define int long long
using namespace std;
typedef long long ll;

string n;

//  文字列を置換する
std::string Replace( std::string String1, std::string String2, std::string String3 )
{
    std::string::size_type  Pos( String1.find( String2 ) );

    while( Pos != std::string::npos )
    {
        String1.replace( Pos, String2.length(), String3 );
        Pos = String1.find( String2, Pos + String3.length() );
    }

    return String1;
}

int strbin2i (const std::string &s) {
    int out = 0;
    for (int i = 0, size = s.size() ; i < size ; ++i ) {
        out *= 2;
        out += ((int)s[i] == 49) ? 1 : 0;
    }
    return out;
}

signed main()
{
	cin >> n;
	n = Replace(n, "hamu", "1");
	n = Replace(n, "ham", "0");

	int ans = strbin2i(n);
	ans *= 2;

	string a;
	while (ans != 0) {
		if (ans % 2 == 1) {
			a = "hamu" + a;
		} else {
			a = "ham" + a;
		}
		ans /= 2;
	}

	cout << a << endl;
}