#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <ctime>
#include <list>
#include <numeric>
#include <utility>
#include <ctime>
#define INF 100000000
#define LINF 9000000000000000000
#define mod 1000000007
 
#define rep(i,n) for(int i=0;i<int(n);i++)
#define REP(i,a,b) for(int i=(a);i<int(b);i++)
#define all(x) (x).begin(),x.end()
#define pb push_back
#define mp make_pair
#define MOD(x) (x%(mod))
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef pair<int,int> pi;
 
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};
bool debug=false;

/*---------------------------------------------------*/

int main(){
  int num=0;
  string s;
  cin>>s;
  ll cnt=1;
  ll sum=0;
  for(int i=0;i<s.size();i++){
    num+=int(s[i]-'0');
    if(i==0)sum=(sum+int(s[i]-'0')*1)%100;
    else if(i%2==0)sum=(sum+int(s[i]-'0')*6)%100;
    else if(i%2==1)sum=(sum+int(s[i]-'0')*4)%100;
  }
  //cout<<"sum: "<<sum<<endl;
  //cout<<num<<endl;
  if(num%3==0&&sum%5==0)cout<<"FizzBuzz"<<endl;
  else if(num%3==0)cout<<"Fizz"<<endl;
  else if(sum%5==0)cout<<"Buzz"<<endl;
  else cout<<s<<endl;
  return 0;
}