#include<iostream> #include<math.h> #include<string.h> #include<vector> #include<algorithm> #include<iomanip> #include<deque> using namespace std; int main(){ string s; cin >> s; if(s.size()<7){ cout << s << endl; return 0; } string ans=""; for(int i=0;i<s.size();i++){ if(s[i]=='t'&&s[i+1]=='r'&&s[i+2]=='e'&&s[i+3]=='e'&&s[i+4]=='o'&&s[i+5]=='n'&&s[i+6]=='e'){ ans+="forest"; i+=6; }else{ ans+=s[i]; } } cout << ans << endl; return 0; }