a-a a-b a-c a-t aaa aab aac aan aao aap aas aat ab- aba abb abc abn abo abp abs abt ac- aca acb acc acn aco acp acs act an- ana anb anc ann ano anp ans ant aoa aob aoc aon aoo aop aos aot ap- apa apb apc apn apo app aps apt as- asa asb asc asn aso asp ass ast at- ata atb atc atn ato atp ats att b-p baa bab bac ban bao bap bas bat bba bbb bbc bbn bbo bbp bbs bbt bca bcb bcc bcn bco bcp bcs bct bna bnb bnc bnn bno bnp bns bnt boa bob boc bon boo bop bos bot bpa bpb bpc bpn bpo bpp bps bpt bsa bsb bsc bsn bso bsp bss bst bta btb btc btn bto btp bts btt c-- caa cab cac can cao cap cas cat cba cbb cbc cbn cbo cbp cbs cbt cca ccb ccc ccn cco ccp ccs cct cn- cna cnb cnc cnn cno cnp cns cnt co- coa cob coc con coo cop cos cot cpa cpb cpc cpn cpo cpp cps cpt csa csb csc csn cso csp css cst cta ctb ctc ctn cto ctp cts ctt naa nab nac nan nao nap nas nat nba nbb nbc nbn nbo nbp nbs nbt nca ncb ncc ncn nco ncp ncs nct nna nnb nnc nnn nno nnp nns nnt no- noa nob noc non noo nop nos not npa npb npc npn npo npp nps npt nsa nsb nsc nsn nso nsp nss nst nta ntb ntc ntn nto ntp nts ntt oaa oab oac oan oao oap oas oat ob- oba obb obc obn obo obp obs obt oc- oca ocb occ ocn oco ocp ocs oct on- ona onb onc onn ono onp ons ont oo- ooa oob ooc oon ooo oop oos oot op- opa opb opc opn opo opp ops opt os- osa osb osc osn oso osp oss ost ot- ota otb otc otn oto otp ots ott p-p paa pab pac pan pao pap pas pat pba pbb pbc pbn pbo pbp pbs pbt pca pcb pcc pcn pco pcp pcs pct pn- pna pnb pnc pnn pno pnp pns pnt poa pob poc pon poo pop pos pot ppa ppb ppc ppn ppo ppp pps ppt ps- psa psb psc psn pso psp pss pst pt- pta ptb ptc ptn pto ptp pts ptt saa sab sac san sao sap sas sat sba sbb sbc sbn sbo sbp sbs sbt sca scb scc scn sco scp scs sct sna snb snc snn sno snp sns snt soa sob soc son soo sop sos sot spa spb spc spn spo spp sps spt ss- ssa ssb ssc ssn sso ssp sss sst sta stb stc stn sto stp sts stt taa tab tac tan tao tap tas tat tba tbb tbc tbn tbo tbp tbs tbt tca tcb tcc tcn tco tcp tcs tct tna tnb tnc tnn tno tnp tns tnt to- toa tob toc ton too top tos tot tpa tpb tpc tpn tpo tpp tps tpt tsa tsb tsc tsn tso tsp tss tst tta ttb ttc ttn tto ttp tts ttt

-ana aaaa aaab aaac aaan aaap aaas aaba aabb aabc aabp aabt aaca aacb aacc aacn aaco aacp aacs aact aana aanp aaon aaoo aapa aapc aapo aaps aapt aasa aasc aass aast aata aatc aatt abaa abab abac aban abap abas abat abb- abba abbb abbo abbs abbt abca abcb abcc abcn abcp abcs abct aboa abob abon aboo abos abot abpa abpc abpn abpp abps abs- absa absp abss abta abts ac-t acaa acab acac acan acap acas acat acba acca accc acco accp accs acct acoa acon acop acos acot acpa acps acpt acsa acsc acss acst acta actc acto acts actt ana- anaa anab anac anan anao anap anas anat anba anbb anbo anca ancc anco anct anna annb anno anns annt ano- anoa anon anos anp- anpa anpp ansa anso ansp ant- anta anto ants antt aoba aoca aocs aonb aono aont aopo aosp aoss aotc apac apan apao apap apas apat apba apbs apca apcb apcc apcn apco apcs apna apno apo- apoc apon apoo apop apos apot appa appc apps appt apsa apso apss apta aptc aptn apts aptt asaa asab asac asan asao asap asas asat asba asbo asc- asca ascb ascc asco ascp asct asnc asno asob asoc ason asop asos asot aspa aspc aspo asps aspt assa assc assn asso assp asss asst asta astb astc asto astp asts at-t ataa atab atac atan atap atas atat atbs atca atcc atco atcs atna atno atns atob atoc aton atop atos atot atsb atsc atst atta attn atto attp atts baaa baan baas baat baba babb babo babs bac- baca bacc bacn baco bacs bact bana banc bann bano banp bans bant baon baos bapa bapc bapp baps bapt basa basc baso bass bast bata batc batn bato bats batt bbas bbbb bbbs bcaa bcap bcas bcat bcbc bcbp bcbs bcca bccc bccs bcos bcpp bcps bcsa bcsc bcsn bcss bctc bcts bnas bnoc bnpp bnss bnta boab boac boan boas boat boba bobb bobo bobs boca boco bocs bona bonc bonn bono bons bont boob booc boon boop boos boot bopa bopp bops bosa bosc bosn boso boss bost bota botb botn boto bots bott bpcp bpot bpsa bsaa bsac bsap bsas bsat bscp bscs bsns bson bsos bspp bssc bsts btaa btan btbp btcc btcs btob btps btss bttb c-bo caaa caab caac caan caap caas caat caba cabo cabs cac- caca cacc caco cana canc cann cano canp cans cant caos capa capb capc capn capo capp caps capt casa casb casc caso casp cass cast cat- cata catb catc cato cats catt cbac cbat cbbc cbbs cbca cbcc cbcn cbcp cbcs cbct cbna cbot cbpc cbpp cbsa cbsc cbsn cbta cbtc ccaa ccab ccac ccap ccas ccat