N = list(input())
for i in range(len(N)):
    N[i]=int(N[i])

isFizz = sum(N)%3==0
temp = 0
for i in range(len(N)):
    if i%2==0:
        temp+=N[i]
    else:
        temp-=N[i]
isBuzz = temp%11==0
if isFizz and isBuzz:
    print('FizzBuzz')
elif isFizz:
    print('Fizz')
elif isBuzz:
    print('Buzz')
else:
    print(''.join(map(str,N)))