#include<stdio.h>

int main(void){
    
    char S[100];
    scanf("%s",S);
    
   
    
    for(int i=0;S[i]!='\0';i++){
        if(S[i]=='t')
            if(S[i+1]=='r')
                if(S[i+2]=='e')
                    if(S[i+3]=='e')
                        if(S[i+4]=='o')
                            if(S[i+5]=='n')
                                if(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';
             for(int j=6;S[i+j]!='\0';j++){
                 S[i+j]=S[i+j+1];}i+=6;}}
    
    printf("%s\n",S);
    
    return 0;
    
    
}