import java.util.Arrays;
public class PJJJeden {
    public static void main(String[] args) {
        int[] arr = { 13, 7, 6, 45, 21, 9, 2, 100 };
        Arrays.sort(arr, 0, arr.length);
        System.out.println("Modified arr[] : " + Arrays.toString(arr));
    }
}