u----i---- o---- i-- u-y - u----i---- o---- i- i u-y t y u--- y u i--- u i o- o o u o p-o-- o-u y O--- r t y--- r t y- t y t y o-o--- u i o- o p s-u y t s s s P-y u i- i [ip] [ip] [ip] [ip] [up] [uO] p [yO] [yO] - [yO] [uO] [iO] o-[to] [to] - [uo] [uo]- [yo] - [yo] [to] [ro] [tp] - o-i---- o p [sf]- [sf] [sf]-[sf] - [sf]- [ad] [ad] [ps] [ps] [os] [is] [os]- [uo]---- o p [sf] O [sf] [sf]-[sf] - [sf]- [ad] [ad] [ps] [ps] [os] [ps] [oa]--- [oa]--- d d d d d [sf] [ag] [dh]-[os] [os]-[oa]-[oa]- [ps] [ip] - [ps] [Pd] [sf] [dg]-[sf] [Pd]-[ps]-[ps] - [ps] [ps]-[sf]-[sf]--- [sf] [sf] [sf]- [ad]-[ad]-[ps]-[ad]- [ad]---- t y u--- y u i--- u i o- o o u o p-o-- o-u y O--- r t y--- r t y- t y t y o-o--- u i o- o p s-u y t- s s P P y u i- [ip] [ip] [ip] [ip] [ip] [ip] [uO] [uO] [yO] [yO] - [yO] [uO] [iO] o [to] [to] [to] - [uo] [uo]- [yo] - [yo] [to] [ro] [tp] - o-i---- d d d d d [sf] [ag] [dh]-[os] [os]-[oa]-[oa]- [ps] [ip] - [ps] [Pd] [sf] [dg]-[sf] [Pd] [Pd] [ps]-[ps] j-[sj] [sj]-[fl]-[fl]--- [fl] [fl] [fl]- [dk]-[dk] d [sj]-[dk] d [dk] d-d [Pf] [Pd] [Ps]---- s [Ps] a---[Pf] [Pd] [ps]---- s [ps]--- [pD] [pd] [Os]---- s [Ps]- [Ps]-[Ps] P P-[os]---- s--- [Pf] [Pd] [Ps] a----[Ps] a---[Pf] [Pd] [ps]---- [ps]--- [pD] [pd] [Os] O----[Ps]- [Ps]-[Ps] P P-[os]