# Your optional code here
# You can import some modules or create additional functions


def checkio(number: int) -> str:
    result = []
    if number % 3 == 0:
        result.append("Fizz")
    if number % 5 == 0:
        result.append("Buzz")
    if len(result) == 0:
        return str(number)
    return " ".join(result)


# Some hints:
# Convert a number in the string with str(n)

# These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
    print('Example:')
    print(checkio(15))

    assert checkio(15) == "Fizz Buzz", "15 is divisible by 3 and 5"
    assert checkio(6) == "Fizz", "6 is divisible by 3"
    assert checkio(5) == "Buzz", "5 is divisible by 5"
    assert checkio(7) == "7", "7 is not divisible by 3 or 5"
    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")