#include using namespace std; #define REP(i,a,n) for(int i=(a); i<(int)(n); i++) #define rep(i,n) REP(i,0,n) #define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it) #define ALLOF(c) (c).begin(), (c).end() typedef long long ll; typedef unsigned long long ull; int main(){ string S; cin >> S; while(true){ auto pos = S.find("treeone"); if(pos == string::npos) break; S = S.substr(0,pos) + "forest" + S.substr(pos+7); } cout << S << endl; return 0; }