-ji a-a a-b a-i aaa aab aai aaj aak aao aar ab- aba abb abi abj abk abo abr ai- aia aib aii aik aio air aja ajb aji ajj ajk ajo ajr aka akb aki akj akk ako akr aoa aob aoi aoj aok aoo aor ar- ara arb ari arj ark aro arr baa bab bai baj bak bao bar bba bbb bbi bbk bbo bbr bi- bia bib bii bij bik bio bir bja bji bjj bjk bjr bka bkb bkk bko bkr boa bob boi boj bok boo bor bra brb bri brj brk bro brr ia- iaa iab iai iao iar iba ibb ibi ibj ibk ibo ibr iia iib iii iij iio iir ija ijb iji ijk ijo ika ikb iki ikk iko ikr io- ioa iob ioi ioj ioo ior ir- ira irb iri irj irk iro irr j-i jaa jab jai jaj jak jao jar jba jbi jbj jbk jbo jbr jia jib jii jij jio jir jja jjb jjj jjk jjr jka jkb jkk jko jkr joa job joi joj jok joo jor jra jrb jri jrk jro jrr ka- kaa kab kai kaj kak kao kar kba kbb kbi kbk kbo kbr kia kib kii kij kik kio kir kjb kji kjr kkb kki kkk kkr koa kob koi kok koo kor kra kri krk kro krr o-i oaa oab oai oaj oak oao oar ob- oba obb obi obj obk obo obr oia oib oii oik oio oir oja ojb oji ojo oka okb oki okj okk oko okr oo- ooa oob ooi ook ooo oor or- ora orb ori ork oro orr ra- raa rab rai raj rak rao rar rba rbb rbi rbk rbo rbr ria rib rii rik rio rir rja rjk rjr rkb rkk rko roa rob roi roj rok roo ror rra rrb rri rrk rrr