import sys read = sys.stdin.buffer.read readline = sys.stdin.buffer.readline readlines = sys.stdin.buffer.readlines N = [int(x) - ord('0') for x in read().rstrip()] A = sum(N[::-1][::2]) B = sum(N[::-1][1::2]) x3 = (A - B) % 3 x5 = (A + B) % 5 if (not x3) and (not x5): print('FizzBuzz') elif (not x3): print('Fizz') elif (not x5): print('Buzz') else: print(''.join(map(str,N)))