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

def tetra(b5):
    b5=''.join(list(reversed(str(b5))))
    b10=0
    for order in range(len(b5)):
        b10=b10+int(b5[order])*(4**order)
    return b10

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)