HW1.4

 public class Solution
 {
     public static void main(String[] args)
     {
         System.out.println("a     a^2    a^3");
         System.out.println("1     1      1");
         System.out.println("2     4      8");
         System.out.println("3     9      27");
         System.out.println("4     16     64");
     }
 }