public static void main(String[] args) {
		// TODO Auto-generated method stub
		MergeSort sample = new MergeSort();
		int n = 20;
		int[] arr = new int[n];
		int i = 0;
		Random r = new Random();
		while (i < n) {
			arr[i++] = r.nextInt(1000);
		}
		for (int j : arr)
			System.out.print(j + " ");
		System.out.println();
		sample.sort(arr);
		for (int j : sample.numbers) {
			System.out.print(j + " ");
		}
		System.out.println();

	}