#include<iostream>
#include<iomanip>
#include<math.h>
#include<vector>
#include<algorithm>
#include<set>
#include<map>
#include<queue>
#include<stack>
#include<string>
#define INF 1000000000ll
#define MOD 1000000007ll
#define EPS 1e-10
#define REP(i,m) for(long long i=0; i<m; i++)
#define FOR(i,n,m) for(long long i=n; i<m; i++)
#define DUMP(a) for(long long dump=0; dump<(ll)a.size(); dump++) { cout<<a[dump]; if(dump!=(ll)a.size()-1) cout<<" "; else cout<<endl; }
#define ALL(v) v.begin(),v.end()
#define pb push_back
using namespace std;
typedef long long ll;
typedef pair<ll, ll> P;
typedef long double ld;

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	string s;
	cin>>s;
	ll mod3=0,mod5=0;
	ll buf3=1,buf5=0;
	REP(i,(ll)s.size()) {
		mod3+=(ll)(s[(ll)s.size()-1-i]-'0')*buf3;
		mod5+=(ll)(s[(ll)s.size()-1-i]-'0')*buf5;
		mod3%=3;
		mod5%=5;
		buf3*=4;
		buf5*=4;
		buf3%=3;
		buf5%=5;
	}
	if(mod3==0&&mod5==0) cout<<"FizzBuzz"<<endl;
	else if(mod3==0) cout<<"Fizz"<<endl;
	else if(mod5==0) cout<<"Buzz"<<endl;
	else cout<<s<<endl;
}