HW1.4

 1 public class Solution
 2 {
 3     public static void main(String[] args)
 4     {
 5         System.out.println("a     a^2    a^3");
 6         System.out.println("1     1      1");
 7         System.out.println("2     4      8");
 8         System.out.println("3     9      27");
 9         System.out.println("4     16     64");
10     }
11 }