#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> P1;
typedef pair<P,P> P2;
#define pb push_back
#define mp make_pair
#define eps 1e-7
#define INF 1000000000
#define mod 1000000007
#define fi first
#define sc second
#define rep(i,x) for(int i=0;i<x;i++)
#define repn(i,x) for(int i=1;i<=x;i++)
#define SORT(x) sort(x.begin(),x.end())
#define ERASE(x) x.erase(unique(x.begin(),x.end()),x.end())
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin())
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin())

int main(){
	string s; cin>>s;
	int n = s.size();
	int x = 0,y = 0,c = 0;
	for(int i=n-1;i>=0;i--){
		if(c%2 == 0){
			x += (s[i]-'0');
			y += (s[i]-'0');
		}
		else{
			x += (s[i]-'0');
			y -= (s[i]-'0');
		}
		c++;
	}
	if(x==0&&y==0)puts("FizzBuzz");
	else if(x==0) puts("Fizz");
	else if(y==0) puts("Buzz");
	else cout<<s<<endl;
}