import java.math.BigInteger;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Scanner;

public class Main {
	
	public static long MOD = 1000000007;
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		final String str = sc.next();
		
		long mod = 0;
		for(int i = 0; i < str.length(); i++){
			mod *= 4;
			mod %= 15;
			
			mod += Character.getNumericValue(str.charAt(i));
			mod %= 15;
		}
		
		if(mod % 15 == 0){
			System.out.println("FizzBuzz");
		}else if(mod % 5 == 0){
			System.out.println("Buzz");
		}else if(mod % 3 == 0){
			System.out.println("Fizz");
		}else{
			System.out.println(str);
		}
		
	}
}