N = input()

def Base_n_to_10_15(X,n):
    out = 0
    a = 1
    for i in range(1,len(str(X))+1):
        a = a*n%15
        out += (int(X[-i])*a )%15
    return out

n = Base_n_to_10_15(N,4)
if n%15 == 0:
    print("FizzBuzz")
elif n%3 == 0:
    print("Fizz")
elif n%5 == 0:
    print("Buzz")
else:
    print(N)