#include<iostream>
#include<cstring>
#include<string.h>
//#include<string>
using namespace std;

int main(){
	char S[100]="treeone";
	string inputS;
	cin >> inputS;
	
	for(int i=0;i < inputS.size()-7;i++){
	 if(strncmp(S,&inputS[i],7)==0){
	  strcpy(&inputS[i],"forest");break;
	  }
	 }
	cout << inputS << endl;
	return 0;
}