def fzbz(n):
    if n % 3 == 0 and n % 5 == 0:
        print("FizzBuzz")
    elif n % 3 == 0:
        print("Fizz")
    elif n % 5 == 0:
        print("Buzz")
    else:
        print(N)

N = int(input())
n10 = int(str(N),4)
fzbz(n10)