public void build(String [] array, String team, int size) {
        for (int i = 0; i < array.length; i++) {
            if (size == 0) {
                System.out.println(team);
                return;
            } else if (size > array.length) {
                return;
            } else {
                team += array[i];
                build(Arrays.copyOfRange(array, i + 1, array.length), team, size - 1);
                team = team.substring(0, team.length()-1);
                size += 1;
            }
        }
    }