a-a a-b a-i a-t aaa aab aai aak aam aao aap aat ab- aba abb abi abk abm abo abp abt ai- aia aib aii aik aim aio aip ait aka akb aki akk akm ako akp ama amb ami amk amm amo amp amt aoa aob aoi aok aom aoo aop aot ap- apa apb api apk apm apo app apt at- ata atb ati atm ato atp att b-p baa bab bai bak bam bao bap bat bba bbb bbi bbk bbm bbo bbp bbt bi- bia bib bii bik bim bio bip bit bka bkb bkk bkm bko bkp bkt bma bmb bmi bmk bmm bmo bmp bmt boa bob boi bok bom boo bop bot bpa bpb bpi bpm bpo bpp bpt bta btb bti btk btm bto btp btt ia- iaa iab iai iam iao iap iat iba ibb ibi ibk ibm ibo ibp ibt iia iib iii iim iio iip iit ika ikb iki ikk iko ikt im- ima imb imi imm imo imp imt io- ioa iob ioi iom ioo iop iot ipa ipb ipi ipm ipo ipp ipt ita itb iti itk itm ito itp itt k-t ka- kaa kab kai kak kam kao kap kat kba kbb kbi kbk kbm kbo kbp kia kib kii kik kim kio kip kit kkb kki kkk kkm kkp kkt kma kmb kmi kmk kmm kmo kmp kmt koa kob koi kok kom koo kop kot kpa kpi kpk kpm kpo kpp kpt kta ktb ktk ktm kto ktp ktt m-o maa mab mai mak mam mao map mat mba mbb mbi mbk mbm mbo mbp mbt mi- mia mib mii mik mim mio mip mit mka mkb mkk mkm mko mkp mkt mma mmb mmi mmk mmm mmo mmp mmt moa mob moi mok mom moo mop mot mpa mpb mpi mpk mpm mpo mpp mpt mta mtb mti mtk mtm mto mtp mtt o-i oaa oab oai oak oam oao oap oat ob- oba obb obi obk obm obo obp obt oia oib oii oik oim oio oip oit oka okb oki okk oko okp om- oma omb omi omm omo omp omt oo- ooa oob ooi ook oom ooo oop oot op- opa opb opi opk opm opo opp opt ot- ota otb oti otk otm oto otp ott p-p paa pab pai pak pam pao pap pat pba pbb pbi pbk pbm pbo pbp pbt pia pib pii pik pim pio pip pit pka pkb pki pkm pko pkp pkt pma pmb pmi pmk pmm pmo pmp pmt poa pob poi pok pom poo pop pot ppa ppb ppi ppk ppm ppo ppp ppt pt- pta ptb pti ptk ptm pto ptp ptt taa tab tai tak tam tao tap tat tba tbb tbi tbk tbm tbo tbp tbt tia tib tii tik tim tio tip tit tka tkb tkk tkm tko tkp tkt tma tmb tmi tmk tmm tmo tmp tmt to- toa tob toi tok tom too top tot tpa tpb tpi tpk tpm tpo tpp tpt tta ttb tti ttk ttm tto ttp ttt