print("Welcome to FizzBuzz!")
def fizzbuzz(number):
    result = ""
    if number % 3 == 0:
        result += "Fizz"
    if number % 5 == 0:
        result += "Buzz"
    if result == "":
        result = str(number)
    return result

number = int(input("Hvilket tal skal undersøges (1-100)? "))
print(fizzbuzz(number))