n=input()
b3=1
c3=0
b5=1
c5=0
for d in n[::-1]:
	c3+=int(d)*b3%3
	c3%=3
	b3*=4
	b3%=3
	c5+=int(d)*b5%5
	c5%=5
	b5*=4
	b5%=5
print([n,"Fizz"*(b3==0)+"Buzz"*(b5==0)][(b3==0) or (b5==0)])