a-a a-b a-c a-t aaa aab aac aad aao aas aat aau ab- aba abb abc abd abo abs abt abu ac- aca acb acc acd aco acs act acu ad- ada adb adc add ado ads adt adu aoa aob aoc aod aoo aos aot aou as- asa asb asc asd aso ass ast asu at- ata atb atc atd ato ats att atu au- aua aub auc aud auo aus aut b-u baa bab bac bad bao bas bat bau bba bbb bbc bbd bbo bbs bbt bbu bca bcb bcc bcd bco bcs bct bcu bda bdb bdc bdd bdo bds bdt bdu boa bob boc bod boo bos bot bou bsa bsb bsc bsd bso bss bst bsu bta btb btc btd bto bts btt btu bua bub buc bud buo bus but buu c-- caa cab cac cad cao cas cat cau cba cbb cbc cbd cbo cbs cbt cbu cca ccb ccc ccd cco ccs cct ccu cda cdb cdc cdd cdo cds cdt cdu co- coa cob coc cod coo cos cot cou csa csb csc csd cso css cst csu cta ctb ctc ctd cto cts ctt ctu cua cub cuc cud cuo cus cut cuu daa dab dac dad dao das dat dau dba dbb dbc dbd dbo dbs dbt dbu dca dcb dcc dcd dco dcs dct dcu dda ddb ddc ddd ddo dds ddt ddu doa dob doc dod doo dos dot dou dsa dsb dsc dsd dso dss dst dsu dta dtb dtc dtd dto dts dtt dtu dua dub duc dud duo dus dut oaa oab oac oad oao oas oat oau ob- oba obb obc obd obo obs obt obu oc- oca ocb occ ocd oco ocs oct ocu oda odb odc odd odo ods odt odu oo- ooa oob ooc ood ooo oos oot os- osa osb osc osd oso oss ost osu ot- ota otb otc otd oto ots ott otu ou- oua ouc oud ouo ous out saa sab sac sad sao sas sat sau sba sbb sbc sbd sbo sbs sbt sbu sca scb scc scd sco scs sct scu sda sdb sdc sdd sdo sds sdt sdu soa sob soc sod soo sos sot sou ss- ssa ssb ssc ssd sso sss sst ssu sta stb stc std sto sts stt stu sua sub suc sud suo sus sut suu taa tab tac tad tao tas tat tau tba tbb tbc tbd tbo tbs tbt tbu tca tcb tcc tcd tco tcs tct tcu tda tdb tdc tdd tdo tds tdt tdu to- toa tob toc tod too tos tot tou tsa tsb tsc tsd tso tss tst tsu tta ttb ttc ttd tto tts ttt ttu tua tub tuc tud tuo tus tut tuu ua- uaa uab uac uad uao uas uat uau uba ubb ubc ubo ubs ubt ubu uca ucb ucc ucd uco ucs uct ucu uda udb udc udd udo uds udt udu uoa uob uoc uod uoo uos uot usa usb usc usd uso uss ust usu uta utb utc utd uto uts utt utu uua uuc uus uut uuu

-ous a-do aaaa aaab aaac aaad aaas aaba aabb aabc aabd aabt aaca aacb aacc aacd aaco aacs aact aacu aada aadc aads aadt aadu aaoo aasa aasc aasd aass aast aasu aata aatc aatt aaus abaa abab abac abad abas abat abau abb- abba abbb abbo abbs abbt abca abcb abcc abcd abcs abct abda abdo abdu aboa abob abod aboo abos abot abou abs- absa absd abss absu abta abts abtu abua abud abus abut ac-t acaa acab acac acad acas acat acba acca accc accd acco accs acct accu acda acdb acdc acds acdt acoa acod acos acot acou acsa acsc acsd acss acst acta actc acto acts actt actu acu- acuo acus acut adaa adab adac adad adao adas adat adba adbc adcc adcs adda addc addd addo adds addu adob adoc adod adoo ados adot adsa adso adss adst adta adts adua adub aoba aoca aocs aosd aoss aotc aotd aous aout asaa asab asac asad asao asas asat asau asba asbo asbu asc- asca ascb ascc asco asct asda asdo asds asob asoc asod asos asot asou assa assc assd asso asss asst assu asta astb astc asto asts asub asud asus at-t ataa atab atac atad atas atat atbs atca atcc atco atcs atdt atob atoc atod atos atot atsb atsc atst atta atto atts attu atua atub atuc atus auaa auca auct audc audo ausa ausd aust ausu aut- auto auts baaa baad baas baat baba babb babo babs babu bac- baca bacc baco bacs bact bada badb badd bado bads badu baos basa basc baso bass bast basu bata batc bato bats batt batu bau- baud bbad bbas bbau bbbb bbbs bbdd bbdo bcaa bcas bcat bcbc bcbs bcca bccc bccs bcda bcds bcos bcsa bcsc bcss bctc bcts bcuc bdbc bddc bdos bdsd boab boac boad boas boat boba bobb bobo bobs bobu boca boco bocs bocu boda bodb bodo bods bodu boob booc bood boos boot bosa bosc boso boss bost bosu bota botb botd boto bots bott boua boud bous bout bsaa bsac bsas bsat bsbd bscs bsod bsos bssc bssd bsts btaa btcc btcs btdt btob btss bttb btus buad buat buba bubb bubo bubs bubu buca bucc buco bucs bucu buda budb budd budo buds budu busa busc buss bust busu but- buta buto buts butt buus c-bo c-cd caaa caab caac caas caat caba cabo cabs cabu cac- caca cacc caco cada cadc cadd cado cads cadu caod caos casa casb casc casd caso cass cast casu cat- cata catb catc catd cato cats catt catu cauc cauo caus caut cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbcu cbdb cbdc cbdo cbds cbot cbsa cbsc cbta cbtc cbus ccaa ccab ccac ccad ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccdc ccds ccob ccoc ccod ccsa ccsd ccss ccst