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

int main() {
  char s[101];
  scanf("%s", s);

  int start, pos=0;
  char *p, tmp[101];
  while ((p=strstr(&s[pos], "treeone"))!=0) {
    start=p-s;
    pos=start+6;
    strcpy(tmp, &s[start+7]);
    strcpy(&s[start], "forest");
    strcat(s, tmp);
  }

  printf("%s\n", s);
  return 0;
}