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

public class prog {

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String line = sc.nextLine();
        
        int odd = 0;
        int even = 0;
        
        for (int i = 0; i < line.length(); ++i){
            int c = line.charAt(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(line);
        }
	}
}