a-a a-b a-i aaa aab aad aai aak aam aar aas ab- aba abb abd abi abk abm abr abs ad- ada adb add adi adk adm adr ads ai- aia aib aid aii aik aim air ais aka akb akd aki akk akm akr aks ama amb amd ami amk amm amr ams ar- ara arb ard ari ark arm arr ars as- asa asb asd asi ask asm asr ass baa bab bad bai bak bam bar bas bba bbb bbd bbi bbk bbm bbr bbs bda bdb bdd bdi bdk bdm bdr bds bi- bia bib bid bii bik bim bir bis bka bkb bkk bkm bkr bks bma bmb bmd bmi bmk bmm bmr bms bra brb brd bri brk brm brr brs bsa bsb bsd bsi bsk bsm bsr bss daa dab dad dai dak dam dar das dba dbb dbd dbi dbk dbm dbr dbs dda ddb ddd ddi ddk ddm ddr dds di- dia dib did dii dik dim dir dis dka dkb dki dkk dkm dkr dks dma dmb dmd dmi dmk dmm dmr dms dra drb drd dri drk drm drr drs dsa dsb dsd dsi dsk dsm dsr dss i-d ia- iaa iab iad iai iam iar ias iba ibb ibd ibi ibk ibm ibr ibs ida idb idd idi idk idm idr ids iia iib iid iii iim iir iis ika ikb iki ikk ikr iks im- ima imb imd imi imm ims ir- ira irb ird iri irk irm irr irs is- isa isb isd isi isk ism isr iss ka- kaa kab kad kai kak kam kar kas kba kbb kbd kbi kbk kbm kbr kbs kda kdb kdk kdm kdr kds kia kib kid kii kik kim kir kis kkb kki kkk kkm kkr kks kma kmb kmd kmi kmk kmm kms kra krd kri krk krr krs ksa ksb ksd ksi ksk ksm ksr kss m-r maa mab mad mai mak mam mar mas mba mbb mbd mbi mbk mbm mbr mbs mda mdb mdd mdi mdk mdm mdr mds mi- mia mib mid mii mik mim mir mis mka mkb mkd mkk mkm mkr mks mma mmb mmd mmi mmk mmm mmr mms mra mrb mrd mri mrk mrm mrr mrs msa msb msd msi msk msm msr mss ra- raa rab rad rai rak ram rar ras rba rbb rbd rbi rbk rbm rbr rbs rda rdb rdd rdi rdm rdr rds ria rib rid rii rik rim rir ris rkb rkk rkm rks rma rmb rmd rmi rmm rmr rms rra rrb rrd rri rrk rrm rrr rrs rsa rsb rsd rsi rsk rsm rsr rss saa sab sad sai sak sam sar sas sba sbb sbd sbi sbk sbm sbr sbs sda sdb sdd sdi sdk sdm sdr sds sia sib sid sii sik sim sir sis sk- ska skb skd ski skk skm skr sks sma smb smd smi smk smm smr sms sr- sra srb srd sri srk srm srr srs ss- ssa ssb ssd ssi ssk ssm ssr sss