S = raw_input()
ans = ''
for i in range(0, len(S)):
	if i <= len(S)-7:
		if S[i]=='t' and S[i+1]=='r' and S[i+2]=='e' and S[i+3]=='e' and S[i+4]=='o' and S[i+5]=='n' and S[i+6]=='e':
			ans = ans + 'forest'
			i += 6
		else: ans = ans + S[i]
	else: ans = ans + S[i]
print ans