str = input()
val = int(str, 4)

div5 = (val) % 5 == 0
div3 = (val) % 3 == 0

if (div5 and div3):
    print("FizzBuzz")
elif (div5):
    print("Buzz")
elif (div3):
    print("Fizz")
else:
    print(str)