Y-Y-Y Y-u- u-t u t u t i-u y--- i-u y--- u-y t--- t-r t r t e y-t r--- y-t r--- t-r e--- u-t u t u t i-u y--- i-u y--- u-y t--- t-r t r t e y-t r--- y-t r--- t-r e--- u-t u t u t t-0 e--- e-r t-r e r r-t y--- y-u i-u i o o-u o--- u-i o-i u O O-u O--- u-I O I-u p - p o-i- u u-t u t u t- u-y u y u t i-u y--- i u-y y y u O p---O-O p