public class Main {
    public static void main(String[] args) {
        int[] a = {44, 37, 3, 33, 5, 49, 7, 53, 9, 77, 82, 109, 10923, 12, 12, 99938, 887430, 87897340, 12435, 1246};
        int array1 = a.length;
        System.out.println(a.length);
        for (int i = 1; i < array1; i+=2) {
            System.out.println(a[i] * 3);
        }
        for (int i=0; i < array1; i+=2) {
            System.out.println(a[i] / 2);
        }
    }
}