import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		char[] arr = s.toCharArray();
		int mod3 = 0;
		int mod5 = 0;
		int base3 = 1;
		int base5 = 1;
		for (int i = arr.length - 1; i >= 0; i--) {
		    int x = arr[i] - '0';
		    mod3 += x * base3;
		    mod3 %= 3;
		    mod5 += x * base5;
		    mod5 %= 5;
		    base3 *= 4;
		    base3 %= 3;
		    base5 *= 4;
		    base5 %= 5;
		}
		if (mod3 == 0 && mod5 == 0) {
		    System.out.println("FizzBuzz");
		} else if (mod3 == 0) {
		    System.out.println("Fizz");
		} else if (mod5 == 0) {
		    System.out.println("Buzz");
		} else {
		    System.out.println(s);
		}
	}
}