import java.util.ArrayList;
public class Loop
{
    public static void main(String[] args)
    {
        int[] arr = new int[]{4,8,12,16,20,24, 28, 32, 36, 40};
        /* C-style for loop */
        for(int k = 0; k < arr.length; k++)
        {
            System.out.println(arr[k]);
        }
        for(int k: arr)  //python for k in arr:
        {
            System.out.println(k);
        }
        ArrayList<String> al = new ArrayList<>();
        for(int k = 0; k <= 15; k++)
        {
            al.add("" + (k*k*k));
        }
        for(String item: al)
        {
            System.out.println(item);
        }
        for(String item: al)
        {
            item = "";
        }
        System.out.println(al);
    }
}