{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE BangPatterns #-}

import Control.Applicative
import Control.Monad
import Control.Arrow
import Data.List
import Data.Maybe
import Data.Char
import qualified Data.ByteString.Char8 as B
import Text.Printf
import Debug.Trace

readInt = ( readLn :: IO Int )
readInts = map ( fst . fromJust . B.readInt ) . B.words <$> B.getLine

which a b f = if f then a else b
mp [ a, b ] = ( a, b )

main = getLine >>= putStrLn . foldr solve ""

solve c s
	| treeone `isPrefixOf` s' = "forest" ++ drop ( length treeone ) s'
	| otherwise = s'
		where
			treeone = "treeone" 
			s' = c : s