#include <iostream>
#include <string>
using namespace std;
int Replace(string& ReplaceString, const char* srcStr, const char* trgStr,int repPos)
{
	string from = srcStr;
	string to   = trgStr;
	int RepPos=1;
	size_t srcStrLen = from.length();
	size_t trgStrLen = to.length();
	string::size_type pos = 0;
	while (pos = ReplaceString.find(from, pos), pos != string::npos) {
		if (repPos==0){
			if (trgStrLen==0){
				ReplaceString.erase(pos,srcStrLen);
			}else{
				ReplaceString.replace(pos, srcStrLen, to);
			}
		}else{
			if (RepPos==repPos){
				if (trgStrLen==0){
					ReplaceString.erase(pos,srcStrLen);
				}else{
					ReplaceString.replace(pos, srcStrLen, to);
				}
				break;
			}else{
				RepPos++;
			}
		}
		if (trgStrLen==0){
			pos += srcStrLen;
		}else{
			pos += trgStrLen;
		}
	}
	return 0;
}
int main(int argc, char* argv[])
{
	string S;
	cin>>S;
	Replace(S,"treeone","forest",0);
	cout<<S<<endl;
	return 0;
}