str = input() odd = 0 even = 0 for i in range(len(str)): if (i%2 == 1): odd += int(str[i]); else: even += int(str[i]); div5 = (odd - even) % 5 == 0 div3 = (odd + even) % 3 == 0 if (div5 and div3): print("FizzBuzz") elif (div5): print("Buzz") elif (div3): print("Fizz") else: print(str)