import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String N = scan.next();
		scan.close();
		int k1 = 0;
		int k2 = 0;
		for(int i = 0; i < N.length(); i++) {
			int t = (int)(N.charAt(i) - '0') ;
			k1 += (4 * k1 + t) % 3;
			k2 += (4 * k2 + t) % 5;
		}
		if(k1 % 3 == 0) {
			if(k2 % 5 == 0) {
				System.out.println("FizzBuzz");
			}else {
				System.out.println("Fizz");
			}
		}else if(k2 % 5 == 0) {
			System.out.println("Buzz");
		}else {
			System.out.println(N);
		}
	}
}