#include <stdio.h>
#include <string.h>
int main(void){
	char S[101];
	
	scanf("%s",S);
	
	//	"treeone" を "forest"に
	for(int i = 0; S[i] != 0; i++){
		if( strncmp(&S[i],"treeone",7) == 0){
			printf("forest");
			i += 6;
		}else{
			printf("%c",S[i]);
		}
	}
	printf("\n");
	
	return 0;
}