import java.io.InputStream;
import java.io.PrintWriter;
import java.lang.reflect.Array;
import java.math.BigDecimal;
import java.math.MathContext;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.PriorityQueue;
import java.util.Queue;
import java.util.Scanner;
import java.util.Set;
import java.util.Stack;
import java.util.TreeMap;
import java.util.TreeSet;

import static java.util.Comparator.*;

public class Main {
    public static void main(String[] args) {
        PrintWriter out = new PrintWriter(System.out);
        Solver solver = new Solver(System.in, out);
        solver.solve();
        out.close();
    }
}
class Solver {
	Scanner sc;
	PrintWriter out;
    public Solver(InputStream in, PrintWriter out) {
    	sc = new Scanner(in);
    	this.out = out;
    }
    // ==================================================================
    public void solve() {
    	char[] C = sc.next().toCharArray();
    	boolean b3 = false, b5 =false;
    	int amari = 0;
    	for (int i = 0; i < C.length; i++) {
			amari = ((int)(C[i] - '0') + amari * 4) % 3;
		}
    	if(amari == 0)	b3 = true;
    	amari = 0;
    	for (int i = 0; i < C.length; i++) {
			amari = ((int)(C[i] - '0') + amari * 4) % 5;
		}
    	if(amari == 0)	b5 = true;
    	if(b3 && b5)	out.println("FizzBuzz");
    	else if(b3)		out.println("Fizz");
    	else if(b5)		out.println("Buzz");
    	else			out.println(C);
    }
}