q2cof r2cof4 s2co t2cof u2cof4

ftdof4 gtdo htdof itdof4 jtdo

4jeo 5jeof 6jeof4 7jeo 8jeof

tafof uafof4 vafo wafof xafof4

i1fof4 j1fo k1fof l1fof4 m1fo