what is the output?

What is the output if the following method is called using: mystery(a, a.length-1); where a is the integer array containing the elements, [-1, 2-3,4,-5, 6, -7,8,-9). static void mystery (int[] a, int last) { if (last 0) if (a[0] > 0) System.out.print(a[last). } else { mysterya, last-13 if (aflast) > 0) System.out.print(a[last)+""}