import java.util.*;
import java.lang.*;
import java.math.*;
import java.io.*;

public class prog {

    public static void main(String[] args) throws IOException{
        byte[] line = new byte[20000005];
        int len = System.in.read(line);
        
        int odd = 0;
        int even = 0;
        
        for (int i = 0; i < len; ++i){
            int c = line[i] - '0';
            if (i%2 == 1) odd  += c;
            else          even += c;
        }
        
        boolean div5 = (odd - even) % 5 == 0;
        boolean div3 = (odd + even) % 3 == 0;
        
        if (div5 && div3){
            System.out.println("FizzBuzz");
        }else if (div5){
            System.out.println("Buzz");
        }else if (div3){
            System.out.println("Fizz");
        }else{
            System.out.println(new String(line));
        }
	}
}