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

class Main {
    static boolean divide(BigInteger b,int v){
        return b.remainder(BigInteger.valueOf(v))==BigInteger.ZERO;
    }
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        BigInteger b=new BigInteger(scan.next(),4);
        if(divide(b,15))
            System.out.println("FizzBuzz");
        else if(divide(b,3))
            System.out.println("Fizz");
        else if(divide(b,5))
            System.out.println("Buzz");
        else
            System.out.println(b.toString(4));
    }
}