u u u i-u - t t-e-u - y-y---- u u u i-u- t-t-e u y - y-y---- u u u i-u - t t-e-u - y-y---- u u u i-u - t t-e-u - y-y---- e r t-r-t- r-t-r-e- e r t-r-t- r-t-r-e- t-t--w--- q-- 0--u-- r--W-- w--e-- t--e-- i--u-- e e e-t-- e--i-- u--e-e---- u-- t-y- u-i-u-i- u-t-y-u- i-u-i-u- y-t-t