import util.IntVector; class Calculator { public static void main(String[] args) { String[] nums = args[0].split(","); // nums -> "1" "2" "3" int[] nums2 = new int[nums.length]; for (int i = 0; i < nums.length; i++) nums2[i] = Integer.parseInt(nums[i]); // nums2 -> 1 2 3 int n = Integer.parseInt(args[1]); IntVector v = new IntVector(nums2); v.add(n); System.out.println(v); } }