@@ -0,0 +1,548 @@
+package com.comp110.support;%0A%0Apublic abstract class Helpers %7B%0A%0A  public static void output(String s) %7B%0A    System.out.println(s);%0A  %7D%0A  %0A  public static void output(int number) %7B%0A    output(new int%5B%5D%7Bnumber%7D);%0A  %7D%0A  %0A  public static void output(int%5B%5D numbers) %7B%0A    for(int i = 0; i %3C numbers.length; i++) %7B%0A      if(i %3E 0) %7B%0A        System.out.print(%22, %22);%0A      %7D%0A      System.out.print(numbers%5Bi%5D);%0A    %7D%0A    System.out.print(%22%5Cn%22);%0A  %7D%0A  %0A  public static int powerOf(int base, int exponent) %7B%0A    return (int)Math.pow(base, exponent);%0A  %7D%0A  %0A%7D%0A

Add support helpers class.