-ji a-a a-b a-i aaa aab aai aaj aao aar aas ab- aba abb abi abj abo abr abs ai- aia aib aii aio air ais aja ajb aji ajj ajo ajr ajs aoa aob aoi aoj aoo aor aos ar- ara arb ari arj aro arr ars as- asa asb asi asj aso asr ass baa bab bai baj bao bar bas bba bbb bbi bbo bbr bbs bi- bia bib bii bij bio bir bis bja bji bjj bjr bjs boa bob boi boj boo bor bos bra brb bri brj bro brr brs bsa bsb bsi bsj bso bsr bss ia- iaa iab iai iao iar ias iba ibb ibi ibj ibo ibr ibs iia iib iii iij iio iir iis ija ijb iji ijo ijs io- ioa iob ioi ioj ioo ior ios ir- ira irb iri irj iro irr irs is- isa isb isi isj iso isr iss j-i jaa jab jai jaj jao jar jas jba jbi jbj jbo jbr jbs jia jib jii jij jio jir jis jja jjb jjj jjr jjs joa job joi joj joo jor jos jra jrb jri jro jrr jrs jsa jsb jsi jsj jso jsr jss o-i oaa oab oai oaj oao oar oas ob- oba obb obi obj obo obr obs oia oib oii oio oir ois oja ojb oji ojo ojs oo- ooa oob ooi ooo oor oos or- ora orb ori oro orr ors os- osa osb osi osj oso osr oss ra- raa rab rai raj rao rar ras rba rbb rbi rbo rbr rbs ria rib rii rio rir ris rja rjr roa rob roi roj roo ror ros rra rrb rri rrr rrs rsa rsb rsi rsj rso rsr rss saa sab sai saj sao sar sas sba sbb sbi sbj sbo sbr sbs sia sib sii sij sio sir sis sja sjb sji sjj sjr sjs soa sob soi soj soo sor sos sr- sra srb sri srj sro srr srs ss- ssa ssb ssi ssj sso ssr sss