a-a a-b aaa aab aaj aan aar aas ab- aba abb abj abn abr abs aja ajb ajj ajn ajr ajs an- ana anb anj ann anr ans ar- ara arb arj arn arr ars as- asa asb asj asn asr ass baa bab baj ban bar bas bba bbb bbn bbr bbs bja bjj bjn bjr bjs bna bnb bnj bnn bnr bns bra brb brj brn brr brs bsa bsb bsj bsn bsr bss jaa jab jaj jan jar jas jba jbj jbr jbs jja jjb jjj jjr jjs jna jnj jnn jnr jns jra jrb jrn jrr jrs jsa jsb jsj jsn jsr jss naa nab naj nan nar nas nba nbb nbn nbr nbs nja njn njs nna nnb nnn nns nra nrb nrj nrn nrr nrs nsa nsb nsn nsr nss ra- raa rab raj ran rar ras rba rbb rbn rbr rbs rja rjr rna rnb rnn rnr rns rra rrb rrn rrr rrs rsa rsb rsj rsn rsr rss saa sab saj san sar sas sba sbb sbj sbn sbr sbs sja sjb sjj sjr sjs sna snb snj snn snr sns sr- sra srb srj srn srr srs ss- ssa ssb ssj ssn ssr sss