a-a a-b a-c a-t aaa aab aac aam aao aap aas aat ab- aba abb abc abm abo abp abs abt ac- aca acb acc acm aco acp acs act ama amb amc amm amo amp ams amt aoa aob aoc aom aoo aop aos aot ap- apa apb apc apm apo app aps apt as- asa asb asc asm aso asp ass ast at- ata atb atc atm ato atp ats att b-p baa bab bac bam bao bap bas bat bba bbb bbc bbm bbo bbp bbs bbt bca bcb bcc bcm bco bcp bcs bct bma bmb bmc bmm bmo bmp bms bmt boa bob boc bom boo bop bos bot bpa bpb bpc bpm bpo bpp bps bpt bsa bsb bsc bsm bso bsp bss bst bta btb btc btm bto btp bts btt c-- caa cab cac cam cao cap cas cat cba cbb cbc cbm cbo cbp cbs cbt cca ccb ccc ccm cco ccp ccs cct cma cmb cmc cmm cmo cmp cms cmt co- coa cob coc com coo cop cos cot cpa cpb cpc cpm cpo cpp cps cpt csa csb csc csm cso csp css cst cta ctb ctc ctm cto ctp cts ctt m-o maa mab mac mam mao map mas mat mba mbb mbc mbm mbo mbp mbs mbt mc- mca mcb mcc mcm mco mcp mcs mct mma mmb mmc mmm mmo mmp mms mmt moa mob moc mom moo mop mos mot mpa mpb mpc mpm mpo mpp mps mpt msa msb msc msm mso msp mss mst mta mtb mtc mtm mto mtp mts mtt oaa oab oac oam oao oap oas oat ob- oba obb obc obm obo obp obs obt oc- oca ocb occ ocm oco ocp ocs oct om- oma omb omc omm omo omp oms omt oo- ooa oob ooc oom ooo oop oos oot op- opa opb opc opm opo opp ops opt os- osa osb osc osm oso osp oss ost ot- ota otb otc otm oto otp ots ott p-p paa pab pac pam pao pap pas pat pba pbb pbc pbm pbo pbp pbs pbt pca pcb pcc pcm pco pcp pcs pct pma pmb pmc pmm pmo pmp pms pmt poa pob poc pom poo pop pos pot ppa ppb ppc ppm ppo ppp pps ppt ps- psa psb psc psm pso psp pss pst pt- pta ptb ptc ptm pto ptp pts ptt saa sab sac sam sao sap sas sat sba sbb sbc sbm sbo sbp sbs sbt sca scb scc scm sco scp scs sct sma smb smc smm smo smp sms smt soa sob soc som soo sop sos sot spa spb spc spm spo spp sps spt ss- ssa ssb ssc ssm sso ssp sss sst sta stb stc stm sto stp sts stt taa tab tac tam tao tap tas tat tba tbb tbc tbm tbo tbp tbs tbt tca tcb tcc tcm tco tcp tcs tct tma tmb tmc tmm tmo tmp tms tmt to- toa tob toc tom too top tos tot tpa tpb tpc tpm tpo tpp tps tpt tsa tsb tsc tsm tso tsp tss tst tta ttb ttc ttm tto ttp tts ttt

aaaa aaab aaac aaam aaap aaas aaba aabb aabc aabm aabp aabt aaca aacb aacc aacm aaco aacp aacs aact aama aamb aamc aamo aamp aams aaoo aapa aapc aapm aapo aaps aapt aasa aasc aasm aass aast aata aatc aatt abaa abab abac abam abap abas abat abb- abba abbb abbo abbs abbt abca abcb abcc abcp abcs abct abma abmb abmc abms abmt aboa abob aboo abos abot abpa abpc abpm abpp abps abs- absa absp abss abta abts ac-t acaa acab acac acap acas acat acba acca accc accm acco accp accs acct acma acmc acmp acms acoa acom acop acos acot acpa acpm acps acpt acsa acsc acsm acss acst acta actc acto acts actt amaa amac amam amap amas amat amb- amba ambo ambs amca amcc amco amcs amm- amma ammo amob amoc amoo amos amot ampa ampc ampm ampo amps ampt amsa amsc amso amss amst amta amtc amto amtp amts aoba aoca aocs aoma aopo aosp aoss aotc apac apam apao apap apas apat apba apbs apca apcb apcc apcm apco apcs apma apo- apoc apom apoo apop apos apot appa appc apps appt apsa apso apss apta aptc apts aptt asaa asab asac asam asao asap asas asat asba asbm asbo asc- asca ascb ascc asco ascp asct asma asmm asmp asms asmt asob asoc asom asop asos asot aspa aspc aspm aspo asps aspt assa assc asso assp asss asst asta astb astc astm asto astp asts at-t ataa atab atac atap atas atat atbs atca atcc atco atcs atm- atma atmo atmp atms atob atoc atom atop atos atot atsb atsc atst atta atto attp atts baaa baam baas baat baba babb babm babo babs bac- baca bacc baco bacs bact bama bamb bamc bamm bamp bams baos bapa bapc bapp baps bapt basa basc baso bass bast bata batc bato bats batt bbas bbbb bbbs bbcm bcaa bcam bcap bcas bcat bcbc bcbp bcbs bcca bccc bccm bccs bcma bcmp bcms bcos bcpp bcps bcsa bcsc bcsm bcss bctc bcts bmaa bmoc bmop bmpt bmtc bmts boab boac boas boat boba bobb bobo bobs boca bocm boco bocs boma bomb bomp boms bomt boob booc boom boop boos boot bopa bopp bops bosa bosc bosm boso boss bost bota botb boto bots bott bpcp bpmc bpms bpot bpsa bsaa bsac bsam bsap bsas bsat bscp bscs bsms bsmt bsos bspp bssc bssm bsts btaa btbp btcc btcs btob btps btss bttb c-bo caaa caab caac caam caap caas caat caba cabo cabs cac- caca cacc cacm caco cama camb camc camm camo camp cams camt caos capa capb capc capm capo capp caps capt casa casb casc casm caso casp cass cast cat- cata catb catc catm cato cats catt cbac