# C問題

N = input()
l = len(N)

i = -1
j = 1
num = 0
while True:
	if i < -l:
		break

	num +=int(N[i])*j
	j *= 4
	i -= 1

m1 = num%3
m2 = num%5

if m1==0 and m2==0:
	print("FizzBuzz")
elif m1 == 0:
	print("Fizz")

elif m2 == 0:
	print("Buzz")

else:
	print(N)