-up a-a a-b a-c a-t aaa aab aac aak aao aap aas aat aau ab- aba abb abc abk abo abp abs abt abu ac- aca acb acc ack aco acp acs act acu aka akb akc akk ako akp aks aku aoa aob aoc aok aoo aop aos aot aou ap- apa apb apc apk apo app aps apt apu as- asa asb asc ask aso asp ass ast asu at- ata atb atc ato atp ats att atu au- aua aub auc auk auo aup aus aut b-p b-u baa bab bac bak bao bap bas bat bau bba bbb bbc bbk bbo bbp bbs bbt bbu bca bcb bcc bck bco bcp bcs bct bcu bka bkb bkc bkk bko bkp bks bkt boa bob boc bok boo bop bos bot bou bpa bpb bpc bpo bpp bps bpt bpu bsa bsb bsc bsk bso bsp bss bst bsu bta btb btc btk bto btp bts btt btu bua bub buc buk buo bup bus but buu c-- caa cab cac cak cao cap cas cat cau cba cbb cbc cbk cbo cbp cbs cbt cbu cca ccb ccc cck cco ccp ccs cct ccu cka ckb ckc cko cks ckt co- coa cob coc cok coo cop cos cot cou cpa cpb cpc cpk cpo cpp cps cpt cpu csa csb csc csk cso csp css cst csu cta ctb ctc ctk cto ctp cts ctt ctu cua cub cuc cuk cuo cup cus cut cuu k-t ka- kaa kab kac kak kao kap kas kat kau kba kbb kbc kbk kbo kbp kbs kbu kca kcb kcc kck kcp kcs kct kcu kkb kkc kkk kkp kks kkt kku koa kob koc kok koo kop kos kot kou kpa kpc kpk kpo kpp kps kpt kpu ksa ksb ksc ksk kso ksp kss kst ksu kta ktb ktc ktk kto ktp kts ktt ktu kub kuc kuk kup kus kut kuu oaa oab oac oak oao oap oas oat oau ob- oba obb obc obk obo obp obs obt obu oc- oca ocb occ ock oco ocp ocs oct ocu oka okb okc okk oko okp oks oku oo- ooa oob ooc ook ooo oop oos oot op- opa opb opc opk opo opp ops opt os- osa osb osc osk oso osp oss ost osu ot- ota otb otc otk oto otp ots ott otu ou- oua ouc ouk ouo oup ous out p-p paa pab pac pak pao pap pas pat pau pba pbb pbc pbk pbo pbp pbs pbt pbu pca pcb pcc pck pco pcp pcs pct pcu pka pkb pkc pko pkp pks pkt pku poa pob poc pok poo pop pos pot pou ppa ppb ppc ppk ppo ppp pps ppt ppu ps- psa psb psc psk pso psp pss pst psu pt- pta ptb ptc ptk pto ptp pts ptt ptu pua pub puc puk pup pus put puu saa sab sac sak sao sap sas sat sau sba sbb sbc sbk sbo sbp sbs sbt sbu sca scb scc sck sco scp scs sct scu sk- ska skb skc skk sko skp sks skt sku soa sob soc sok soo sop sos sot sou spa spb spc spk spo spp sps spt spu ss- ssa ssb ssc ssk sso ssp sss sst ssu sta stb stc stk sto stp sts stt stu sua sub suc suk suo sup sus sut suu taa tab tac tak tao tap tas tat tau tba tbb tbc tbk tbo tbp tbs tbt tbu tca tcb tcc tck tco tcp tcs tct tcu tka tkb tkc tkk tko tkp tks tkt to- toa tob toc tok too top tos tot tou tpa tpb tpc tpk tpo tpp tps tpt tpu tsa tsb tsc tsk tso tsp tss tst tsu tta ttb ttc ttk tto ttp tts ttt ttu tua tub tuc tuk tuo tup tus tut tuu ua- uaa uab uac uak uao uap uas uat uau uba ubb ubc ubk ubo ubp ubs ubt ubu uca ucb ucc uck uco ucp ucs uct ucu uka ukb ukc ukk ukp uku uoa uob uoc uok uoo uop uos uot up- upa upb upc upk upo upp ups upt upu usa usb usc usk uso usp uss ust usu uta utb utc utk uto utp uts utt utu uua uuc uus uut uuu

-ous a-ak a-ok aaaa aaab aaac aaap aaas aaba aabb aabc aabp aabt aaca aacb aacc aack aaco aacp aacs aact aacu aaka aaku aaoo aapa aapc aapo aaps aapt aasa aasc aass aast aasu aata aatc aatk aatt aaup aaus abaa abab abac abak abap abas abat abau abb- abba abbb abbo abbs abbt abca abcb abcc abcp abcs abct aboa abob abok aboo abos abot abou abpa abpc abpp abps abs- absa absp abss absu abta abts abtu abua abuk abus abut ac-t acaa acab acac acap acas acat acba acca accc acco accp accs acct accu acks acoa acop acos acot acou acpa acps acpt acpu acsa acsc acss acst acta actc acto acts actt actu acu- acuo acup acus acut akaa akao akap akas akca akka akko akku akok akos akot akpo akpu aksa akst aksu akua aoba aoca aocs aokp aoks aopo aosp aoss aotc aous aout apac apak apao apap apas apat apba apbs apca apcb apcc apco apcs apo- apoc apoo apop apos apot apou appa appc apps appt appu apsa apso apss apsu apta aptc apts aptt apua apuc apup apus asaa asab asac asak asao asap asas asat asau asba asbo asbu asc- asca ascb ascc asco ascp asct aska asko asks askt asob asoc asok asop asos asot asou aspa aspc aspo asps aspt assa assc assk asso assp asss asst assu asta astb astc asto astp asts asub asus at-t ataa atab atac atak atap atas atat atbs atca atcc atck atco atcs atka atkt atob atoc atok atop atos atot atsb atsc atst atta atto attp atts attu