import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        char[] values = sc.next().toCharArray();
        int mod3 = 0;
        int mod5 = 0;
        for (int i = 0; i < values.length; i++) {
            int x = values[i] - '0';
            mod3 *= 4;
            mod3 += x;
            mod3 %= 3;
            mod5 *= 4;
            mod5 += x;
            mod5 %= 5;
        }
        if (mod3 == 0) {
            System.out.print("Fizz");
        }
        if (mod5 == 0) {
            System.out.print("Buzz");
        }
        if (mod3 * mod5 > 0) {
            System.out.print(values);
        }
        System.out.println();
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}