var n = 1

while n < 20 {
    if n % 15 == 0 {
        print("fizzbuzz")
    } else if n % 3 == 0 {
        print("fizz")
    } else if n % 5 == 0 {
        print("buzz")
    } else {
        print(n)
    }

    n = n + 1
}