n=input()
list1=[]
for i in range(len(n)):
    list1.append(int(n[i]))

if sum(list1)%6==0:
    print("FizzBuzz")
elif sum(list1)%2==0:
    print("Buzz")
elif sum(list1)%3==0:
    print("Fizz")
else:
    print(n)