def fb(n):
	ret = ""
	n_ans = n % 3
	if n_ans == 0:
		ret += "Fizz"

	n_ans = n % 5
	if n_ans == 0:
		ret += "Buzz"

	return ret


i = 1
while i <= 20:
    print(i, fb(i))
    i = i + 1