import sys,collections
sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def Ss(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def S(): return input()

N = S()

def Base_n_to_10(X,n):
    out = 0
    a = 1
    for i in range(1,len(str(X))+1):
        a = a*n
        out += int(X[-i])*a
    return out#int out

n = Base_n_to_10(N,4)

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