def main():
    inp1 = input()
    
    tens = 0
    for n in list(inp1):
        tens = tens * 4
        tens += int(n)
        
    if tens % 15 == 0:
        print("FizzBuzz")
    elif tens % 3 == 0:
        print("Fizz")
    elif tens % 5 == 0:
        print("Buzz")
    else:
        print(inp1)
    
    


if __name__ == '__main__':
    main()