import java.util.*;

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