package main

import (
    "fmt"
    "os"
    "bufio"
    "strings"
    "strconv"
)

type Scanner struct {

    reader *bufio.Reader
    buffer []string
    pointer int
}

func NewScanner() *Scanner {
    return &Scanner{
        reader: bufio.NewReaderSize(os.Stdin,4096),
        pointer: 0,
    }
}

func (self *Scanner) NextLine () string {
    var buffer []byte
    for {
        line,isPrefix,_ := self.reader.ReadLine()
        buffer = append(buffer, line...)
        if !isPrefix {
            break
        }
    }
    return string(buffer)
}

func (self *Scanner) Next () string {
    if self.pointer >= len(self.buffer) {
        line := self.NextLine()
        self.buffer = strings.Fields(line)
        self.pointer = 0
    }
    self.pointer++
    return self.buffer[self.pointer-1]
}

func (self *Scanner) NextInt () int {
    s := self.Next()
    i,_ := strconv.ParseInt(s,10,32)
    return int(i)
}

func (self *Scanner) NextLong () int64{
    s := self.Next()
    l,_ := strconv.ParseInt(s,10,64)
    return int64(l)
}

func (self *Scanner) NextFloat () float32 {
    s := self.Next()
    f,_ := strconv.ParseFloat(s,32)
    return float32(f)
}

func (self *Scanner) NextDouble () float64 {
    s := self.Next()
    d,_ := strconv.ParseFloat(s,64)
    return float64(d)
}

func modpow(x,y,mod int) int {
	if y == 0 {
		return 1
	}
	if y % 2 == 1 {
		return modpow(x,y-1,mod) * x % mod
	}
	tmp := modpow(x,y/2,mod)
	return tmp * tmp % mod
}

func main () {
    cin := NewScanner()

	N := []byte(cin.Next())
	tmpN := N
	zero := []byte("0")[0]
	
	modThree := 0
	modFive := 0

	L := len(N)
	for i := 0; i < L; i++ {
		modThree += int(N[i]-zero) % 10 * modpow(4,i,3)
		modThree %= 3
		modFive += int(N[i]-zero) % 10 * modpow(4,i,5)
		modFive %= 5
	}

	if modThree % 3 == 0 && modFive % 5 == 0 {
		fmt.Println("FizzBuzz")
	} else if modFive == 0 {
		fmt.Println("Buzz")
	} else if modThree == 0 {
		fmt.Println("Fizz")
	} else {
		fmt.Println(string(tmpN))
	}
}