#include <stdio.h>
#include <string.h>

int main(void)
{
    char s[101];
    int i;
    scanf("%s",s);
    while(strstr(s,"treeone")!=NULL)*strstr(s,"treeone")='0';
    for(i=0;i<strlen(s);i++){
        if(s[i]=='0'){
            printf("forest");
            i+=6;
        }
        else printf("%c",s[i]);
    }
    return 0;
}