import log
import sys

main() {
	fizzbuzz(15)
}

fizzbuzz(n Int) {
	x := 1

	loop {
		switch {
			x % 15 == 0 { print("FizzBuzz", 8) }
			x % 5 == 0  { print("Buzz", 4) }
			x % 3 == 0  { print("Fizz", 4) }
			_           { log.number(x) }
		}

		x += 1

		if x > n {
			return
		}

		print(" ", 1)
	}
}

print(address Pointer, length Int) {
	sys.write(1, address, length)
}