N = int(input())
A = [i for i in range(N)]
A.reverse()
z = A.pop()
flag = "a"
if A:
	flag ="ab"
	a = A.pop()
	print(a)
if A:
	flag = "abc"
	b = A.pop()
	print(b)
if A:
	flag = "abcd"
	c = A.pop()
	print("Fizz")
	d = b + c
if A:
	A.reverse()
	A = A + [N]
elif flag == "abc":
	print("Fizz")
else:
	print(len(flag))
for n in A:
	r = ""
	if n == (n//c) * c:
		r = r + "Fizz"
	if n == (n//d) * d:
		r = r + "Buzz"
	if r:
		print(r)
	else:
		print(n)