fn multiples_of_three_and_five_below(n int) []int {
	mut nums := []int
	for i := 3; i < n; i++ {
		if i % 3 == 0 || i % 5 == 0 {
			nums << i
		}
	}
	return nums
}

fn main() {
	mut result := 0
	for n in multiples_of_three_and_five_below(1000) {
		result += n
	}
	println(result)
}