using namespace std;
int main()
{
	string s;
	cin>>s;
	int len = s.size();
	if(len<4)
	{
		cout<<s;
		return 0;
		}	
	string s1 = s.substr(len-2);
	string s2 = s.substr(len-2);
	string t= s;
	if(s1=="ly"||s1=="er")
	{
		t = s.substr(0,len-2);
	}
	 else if (s2 =="ing")
	 {
	 	t=s.substr(0,len-3);
	 }
	 
	cout<<t;
	
	return 0;
}
//https://www.bilibili.com/video/BV1U84y1w7wn?spm_id_from=333.788.player.switch&vd_source=42c02d8f2977de812d87f471f8153d89