package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	sc.Scan()
	n := sc.Text()

	var m3, m5 int
	for _, c := range n {
		m3 = (m3*4 + int(c-'0')) % 3
		m5 = (m5*4 + int(c-'0')) % 5
	}

	if m3 == 0 && m5 == 0 {
		fmt.Println("FizzBuzz")
	} else if m3 == 0 {
		fmt.Println("Fizz")
	} else if m5 == 0 {
		fmt.Println("Buzz")
	} else {
		fmt.Println(n)
	}
}