u-u y-t e-w t - t - i - t - u - u-u y-t e-w t - t - i - t - u - u-u y-t u-u y-t u-u y-t e-w u - t - i - t - u - u-u y-t e-w t - t - i - t - u - u-u y-t e-w t - t - i - t - u - u-u y-t u-u y-t u-u y-t e-w u - t - i - t - u - i---- w u - t-t Y-Y - w u - t-t Y--- w u - t-t u-u o- o P - o - Y - y- t i - e-w t - e- w i-t - Y--y- t u - e-w t - e- w u-i - u