func remove(s []int, i int) []int {
	for j := 0; j < len(s); j++ {
		if s[j] == i {
			s = removeIndex(s, j)
		}
	}
	return s
}

func removeIndex(arr []int, z int) []int {
	arr[z] = arr[len(arr)-1]
	return arr[:len(arr)-1]
}