a-a a-b a-t a-z aaa aab aam aao aap aar aas aat aaz ab- aba abb abm abo abp abr abs abt abz ama amb amm amo amp amr ams amt amz aoa aob aom aoo aop aor aos aot ap- apa apb apm apo app apr aps apt ar- ara arb arm aro arp arr ars art arz as- asa asb asm aso asp asr ass ast asz at- ata atb atm ato atp atr ats att atz az- aza azb azm azo azp azs azt azz b-p baa bab bam bao bap bar bas bat baz bba bbb bbm bbo bbp bbr bbs bbt bma bmb bmm bmo bmp bmr bms bmt bmz boa bob bom boo bop bor bos bot boz bpa bpb bpm bpo bpp bpr bps bpt bra brb brm bro brp brr brs brt brz bsa bsb bsm bso bsp bsr bss bst bta btb btm bto btp btr bts btt btz bza bzo bzp bzr bzs bzz m-o m-r maa mab mam mao map mar mas mat maz mba mbb mbm mbo mbp mbr mbs mbt mma mmb mmm mmo mmp mmr mms mmt mmz moa mob mom moo mop mor mos mot moz mpa mpb mpm mpo mpp mpr mps mpt mra mrb mrm mro mrp mrr mrs mrt mrz msa msb msm mso msp msr mss mst mta mtb mtm mto mtp mtr mts mtt mza mzb mzm mzp mzt oaa oab oam oao oap oar oas oat ob- oba obb obm obo obp obr obs obt om- oma omb omm omo omp omr oms omt omz oo- ooa oob oom ooo oop oor oos oot op- opa opb opm opo opp opr ops opt or- ora orb orm oro orp orr ors ort orz os- osa osb osm oso osp osr oss ost ot- ota otb otm oto otp otr ots ott otz oza ozm ozo ozs ozt ozz p-p paa pab pam pao pap par pas pat paz pba pbb pbm pbo pbp pbr pbs pbt pbz pma pmb pmm pmo pmp pmr pms pmt pmz poa pob pom poo pop por pos pot poz ppa ppb ppm ppo ppp ppr pps ppt ppz pra prb prm pro prp prr prs prt prz ps- psa psb psm pso psp psr pss pst pt- pta ptb ptm pto ptp ptr pts ptt ptz pzm pzp pzt ra- raa rab ram rao rap rar ras rat raz rba rbb rbm rbo rbp rbr rbs rbt rma rmb rmm rmo rmp rmr rms rmt roa rob rom roo rop ror ros rot roz rpa rpb rpm rpo rpp rpr rps rpt rpz rra rrb rrm rrp rrr rrs rrt rsa rsb rsm rso rsp rsr rss rst rta rtb rtm rto rtp rtr rts rtt rtz rza rzb rzm rzo saa sab sam sao sap sar sas sat saz sba sbb sbm sbo sbp sbr sbs sbt sma smb smm smo smp smr sms smt smz soa sob som soo sop sor sos sot soz spa spb spm spo spp spr sps spt spz sr- sra srb srm sro srp srr srs srt ss- ssa ssb ssm sso ssp ssr sss sst ssz sta stb stm sto stp str sts stt stz sza szp szr taa tab tam tao tap tar tas tat taz tba tbb tbm tbo tbp tbr tbs tbt tbz tma tmb tmm tmo tmp tmr tms tmt tmz to- toa tob tom too top tor tos tot toz tpa tpb tpm tpo tpp tpr tps tpt tpz tra trb trm tro trp trr trs trt trz tsa tsb tsm tso tsp tsr tss tst tta ttb ttm tto ttp ttr tts ttt tza tzs zaa zab zam zao zap zar zas zat zaz zbb zbm zbr zbs zbt zma zmb zmm zmp zms zmt zo- zoa zob zom zoo zor zos zot zpm zpo zpp zpr zpt zro zrp zrs zsa zsm zst zsz zta ztm ztr zzr zzs zzt zzz