[4t]-t-t-t- [6t]-t-t-t- [7y]-y-y-y- [8t]-t-t-[7y]- [6t]-t-t-t- [7y]-y-y-y- [8t]-t-[7y]-- q-p p [qp] p o u 6--6-t- [7p]-o-7-i- [8u]-o-8-- q p p p [qp] p o u 6--6-- 7 p p p [7p] p o u 8--8-- q-s-[qs] d a s 6--6-s- [7a]-p o 7-i- [8u] o - 8-- q o p p [qp] o p o [6u]--6-- 7 - u [7o] p o i [8u]--8-- [qs] s-s [qs] d f f 8--8-s s [6d] f f f 6 - d [qd] s - q-- [qg]-g g [qg]-g g [8f] d u-[8s]-s s [6d] f - [6f]-d- [qd] s - [qs]-- [qd]-p p [qp]-p o [6u]--6-- [7p]-p p [7p]-p o [8u]--8