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)