datas = input();
nagasa = len(datas);
result=0;
mongon="";

four = 4 ** nagasa;

for inp in range(0,nagasa):
	four = int(four / 4);
	result = result + int(datas[inp]) *four;

if result % 3 == 0:
	mongon = mongon + "Fizz";

if result % 5== 0:
	mongon = mongon + "Buzz";

if result % 3 == 0 or result % 5== 0:
	print(mongon);
else:
	print(datas);