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

int three(int o,int e)
{
    if((o+e)%3)return 0;
    else return 1;
}

int eleven(int o,int e)
{
    if(o!=e&&(o+e)%11)return 0;
    else return 1;
}

int main(void)
{
    char n[2000001];
    int o=0,e=0,i;
    scanf("%s",n);
    for(i=strlen(n);i>0;i--){
        if(i%2)o+=n[i-1]-'0';
        else e+=n[i-1]-'0';
    }
    if(three(o,e)&&eleven(o,e))puts("FizzBuzz");
    else if(three(o,e))puts("Fizz");
    else if(eleven(o,e))puts("Buzz");
    else puts(n);
    return 0;
}