#include <stdio.h>

int main(void) {

	int i, flag = 1;
	char s[400000];
	scanf("%s", s);

	i = 0;
	while(s[i] != 0){
		if(s[i] == ',' && (s[i - 1] == 'A' || s[i - 1] == 'E')){
			printf("Failed...\n");
			flag = 0;
			break;
		} 
		i++;
	}
	if(s[i - 1] == 'A' || s[i - 1] == 'E'){
		printf("Failed...\n");
		flag = 0;
	}	
	if(flag == 1){
		printf("Done!\n");
	}

	return 0;
}