dotop[8], podoi[7], opito[7],
pito[6], topi[6], ooid[5],
dip[5], pod[5], dit[5], pit[5], pot[5], top[5], doi[4], ido[4], odo[4], poi[4], toi[4], oto[4],
id[3], do[3], od[3], pi[3], op[3], po[3], ot[3], to[3],
