N=int(input())

L=len(str(N))
ans=0
S=str(N)
S=list(S)
S=S[::-1]
for i in range(L):
    ans+=int(S[i])*(4**(L-1-i))
#print(ans)

if ans%15==0:
    print("FizzBuzz")
elif ans%5==0:
    print("Buzz")
elif ans%3==0:
    print("Fizz")
else:
    print(N)