func find(numbers []int, goal int) []int {
	n := []int{}
	for i, num := range numbers {
		if int(i+1) < len(numbers) {
			if math.Abs(float64(numbers[i+1]-goal)) < math.Abs(float64(num-goal)) {
				n = append(n, numbers[i+1])
			} else {
				n = append(n, num)
			}
		}
	}
	if len(n) > 1 {
		return find(n, goal)
	} else {
		return n
	}
}