S=input()
S=list(S)
n=len(S)

#print(n)
for i in range(n-6):
    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'):
        S[i]='f'
        S[i+1]='o'
        S[i+2]='r'
        S[i+3]='e'
        S[i+4]='s'
        S[i+5]='t'
        S[i+6]=''

for i in range(n-1):
    print(S[i], end='')
print(S[-1])