N <br /> m <br /> N <br /> O <br /> O <br /> O <br /> O <br /> 0 <br /> O <br /> O <br /> O <br /> O <br /> O <br /> O <br /> 0 <br /> U <br /> 0 <br /> 0 <br /> 0 <br /> U <br /> m <br /> 0 <br /> 0 <br /> 0 <br /> 0 <br />