#include<cstdio>

int main(void) {
char s[5000000];
scanf("%s",s);
int a=0;
char *p = s;
while(*p) a*=4, a+=*p++-'0';
printf("%s\n", a%15==0?"FizzBuzz":(a%3==0?"Fizz":a%5==0?"Buzz":s));
}