#!/usr/bin/python3
#!coding:utf-8

def tetra(b5):
    out = 0
    b5=str(b5)
    for i in range(1,len(str(b5))+1):
        out += int(b5[-i])*(4**(i-1))
    return out

N4=int(input())
N10=tetra(N4)
#print(N10)
if N10%3==0 and N10%5==0:
    print("FizzBuzz")
elif N10%3==0:
    print("Fizz")
elif N10%5==0:
    print("Buzz")
else:
    print(N4)