datas = input();
nagasa = len(datas);
zyo =nagasa -1;
result=0;
mongon="";

for inp in range(0,nagasa):
	if inp < zyo:
		four =int(datas[inp]) *( 4 ** (zyo-inp));
	else:
		four =int(datas[inp]);
	result = result + 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);