a-a a-b a-c a-t aaa aab aac aan aao aas aat aau ab- aba abb abc abn abo abs abt abu ac- aca acb acc acn aco acs act acu an- ana anb anc ann ano ans ant anu aoa aob aoc aon aoo aos aot aou as- asa asb asc asn aso ass ast asu at- ata atb atc atn ato ats att atu au- aua aub auc aun auo aus aut b-u baa bab bac ban bao bas bat bau bba bbb bbc bbn bbo bbs bbt bbu bca bcb bcc bcn bco bcs bct bcu bna bnb bnc bnn bno bns bnt bnu boa bob boc bon boo bos bot bou bsa bsb bsc bsn bso bss bst bsu bta btb btc btn bto bts btt btu bua bub buc bun buo bus but buu c-- caa cab cac can cao cas cat cau cba cbb cbc cbn cbo cbs cbt cbu cca ccb ccc ccn cco ccs cct ccu cn- cna cnb cnc cnn cno cns cnt cnu co- coa cob coc con coo cos cot cou csa csb csc csn cso css cst csu cta ctb ctc ctn cto cts ctt ctu cua cub cuc cun cuo cus cut cuu naa nab nac nan nao nas nat nau nba nbb nbc nbn nbo nbs nbt nbu nca ncb ncc ncn nco ncs nct ncu nna nnb nnc nnn nno nns nnt nnu no- noa nob noc non noo nos not nou nsa nsb nsc nsn nso nss nst nsu nta ntb ntc ntn nto nts ntt ntu nua nub nuc nun nuo nus nut nuu oaa oab oac oan oao oas oat oau ob- oba obb obc obn obo obs obt obu oc- oca ocb occ ocn oco ocs oct ocu on- ona onb onc onn ono ons ont onu oo- ooa oob ooc oon ooo oos oot os- osa osb osc osn oso oss ost osu ot- ota otb otc otn oto ots ott otu ou- oua ouc oun ouo ous out saa sab sac san sao sas sat sau sba sbb sbc sbn sbo sbs sbt sbu sca scb scc scn sco scs sct scu sna snb snc snn sno sns snt snu soa sob soc son soo sos sot sou ss- ssa ssb ssc ssn sso sss sst ssu sta stb stc stn sto sts stt stu sua sub suc sun suo sus sut suu taa tab tac tan tao tas tat tau tba tbb tbc tbn tbo tbs tbt tbu tca tcb tcc tcn tco tcs tct tcu tna tnb tnc tnn tno tns tnt to- toa tob toc ton too tos tot tou tsa tsb tsc tsn tso tss tst tsu tta ttb ttc ttn tto tts ttt ttu tua tub tuc tun tuo tus tut tuu ua- uaa uab uac uan uao uas uat uau uba ubb ubc ubn ubo ubs ubt ubu uca ucb ucc ucn uco ucs uct ucu un- una unb unc unn uno uns unt unu uoa uob uoc uon uoo uos uot usa usb usc usn uso uss ust usu uta utb utc utn uto uts utt utu uua uuc uun uus uut uuu

-ana -ous a-un aaaa aaab aaac aaan aaas aaba aabb aabc aabt aaca aacb aacc aacn aaco aacs aact aacu aana aaon aaoo aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac aban abas abat abau abb- abba abbb abbo abbs abbt abca abcb abcc abcn abcs abct abnu aboa abob abon aboo abos abot abou abs- absa abss absu abta abts abtu abua abun abus abut ac-t acaa acab acac acan acas acat acba acca accc acco accs acct accu acoa acon acos acot acou acsa acsc acss acst acta actc acto acts actt actu acu- acuo acus acut ana- anaa anab anac anan anao anas anat anau anba anbb anbo anbu anca ancc anco anct anna annb anno anns annt ano- anoa anon anos ansa anso ansu ant- anta anto ants antt antu anua anub anun anus anut aoba aoca aocs aonb aono aont aoss aotc aoun aous aout asaa asab asac asan asao asas asat asau asba asbo asbu asc- asca ascb ascc asco asct asnc asno asob asoc ason asos asot asou assa assc assn asso asss asst assu asta astb astc asto asts asub asun asus at-t ataa atab atac atan atas atat atbs atca atcc atco atcs atna atno atns atob atoc aton atos atot atsb atsc atst atta attn atto atts attu atua atub atuc atun atus auaa auca auct auna aunt ausa aust ausu aut- auto auts baaa baan baas baat baba babb babo babs babu bac- baca bacc bacn baco bacs bact bana banc bann bano bans bant banu baon baos basa basc baso bass bast basu bata batc batn bato bats batt batu bau- bbas bbau bbbb bbbs bcaa bcas bcat bcbc bcbs bcca bccc bccs bcnu bcos bcsa bcsc bcsn bcss bctc bcts bcuc bnas bnoc bnss bnta boab boac boan boas boat boba bobb bobo bobs bobu boca boco bocs bocu bona bonc bonn bono bons bont bonu boob booc boon boos boot bosa bosc bosn boso boss bost bosu bota botb botn boto bots bott boua boun bous bout bsaa bsac bsas bsat bscs bsns bson bsos bssc bsts btaa btan btcc btcs btob btss bttb btus buat buba bubb bubo bubs bubu buca bucc buco bucs bucu buna bunb bunn buno buns bunt bunu buon busa busc buss bust busu but- buta buto buts butt buus c-bo caaa caab caac caan caas caat caba cabo cabs cabu cac- caca cacc caco cana canc cann cano cans cant caos casa casb casc caso cass cast casu cat- cata catb catc cato cats catt catu cauc cauo caus caut cbac cbat cbbc cbbs cbca cbcc cbcn cbcs cbct cbcu cbna cbot cbsa cbsc cbsn cbta cbtc cbus ccaa ccab ccac ccas ccat ccba ccbc ccbn ccca cccb cccc cccs cccu ccna ccnb ccnc ccns ccnu