a-a a-b a-c a-t aaa aab aac aam aao aat aau aax ab- aba abb abc abm abo abt abu abx ac- aca acb acc acm aco act acu acx ama amb amc amm amo amt amu amx aoa aob aoc aom aoo aot aou aox at- ata atb atc atm ato att atu atx au- aua aub auc aum auo aut aux ax- axa axm axo axt axx b-u baa bab bac bam bao bat bau bax bba bbb bbc bbm bbo bbt bbu bbx bca bcb bcc bcm bco bct bcu bcx bma bmb bmc bmm bmo bmt bmu bmx boa bob boc bom boo bot bou box bta btb btc btm bto btt btu btx bua bub buc bum buo but buu bux bxb bxm bxo bxx c-- caa cab cac cam cao cat cau cax cba cbb cbc cbm cbo cbt cbu cbx cca ccb ccc ccm cco cct ccu ccx cma cmb cmc cmm cmo cmt cmu cmx co- coa cob coc com coo cot cou cox cta ctb ctc ctm cto ctt ctu ctx cua cub cuc cum cuo cut cuu cxc cxo cxt cxx m-o maa mab mac mam mao mat mau max mba mbb mbc mbm mbo mbt mbu mbx mc- mca mcb mcc mcm mco mct mcu mcx mma mmb mmc mmm mmo mmt mmu mmx moa mob moc mom moo mot mou mox mta mtb mtc mtm mto mtt mtu mtx mua mub muc mum mut muu mux mxa mxc mxu oaa oab oac oam oao oat oau oax ob- oba obb obc obm obo obt obu obx oc- oca ocb occ ocm oco oct ocu ocx om- oma omb omc omm omo omt omu omx oo- ooa oob ooc oom ooo oot oox ot- ota otb otc otm oto ott otu ou- oua ouc oum ouo out ox- oxa oxb oxc oxo oxt oxx t-x taa tab tac tam tao tat tau tax tba tbb tbc tbm tbo tbt tbu tca tcb tcc tcm tco tct tcu tcx tma tmb tmc tmm tmo tmt tmu tmx to- toa tob toc tom too tot tou tox tta ttb ttc ttm tto ttt ttu ttx tua tub tuc tum tuo tut tuu tux txt txu ua- uaa uab uac uam uao uat uau uba ubb ubc ubo ubt ubu ubx uca ucb ucc ucm uco uct ucu um- uma umb umc umm umo umt umu uoa uob uoc uom uoo uot uox uta utb utc utm uto utt utu utx uua uuc uum uut uuu uxb uxc uxo uxt uxu xaa xac xam xat xau xbc xbx xcb xcx xma xmc xmm xmo xmt xmu xmx xoa xoc xom xoo xot xox xtc xtm xtx xxo xxx

aaaa aaab aaac aaam aaba aabb aabc aabm aabt aaca aacb aacc aacm aaco aact aacu aama aamb aamc aamo aaoo aata aatc aatt abaa abab abac abam abat abau abax abb- abba abbb abbo abbt abca abcb abcc abct abma abmb abmc abmt aboa abob aboo abot abou abox abta abtu abua abum abut ac-t acaa acab acac acat acba acca accc accm acco acct accu acma acmc acmu acoa acom acot acou acta actc acto actt actu acu- acum acuo acut amaa amac amam amat amax amb- amba ambo ambu ambx amca amcc amco amm- amma ammo ammu amob amoc amoo amot amou amta amtc amto amua amum aoba aoca aoma aotc aout at-t at-x ataa atab atac atat atax atca atcc atco atm- atma atmo atmu atob atoc atom atot atta atto attu atua atub atuc atum auaa auca auct auma aut- auto auxa axat axo- axoa axto axum axxo ba-x baaa baam baat baba babb babm babo babu bac- baca bacc baco bact bama bamb bamc bamm bamu bata batc bato batt batu bau- baum baux baxt bbau bbbb bbcm bbox bcaa bcam bcat bcbc bcca bccc bccm bcma bctc bcuc bmaa bmoc bmtc boab boac boat boba bobb bobo bobu boca bocm boco bocu boma bomb bomt bomu boob booc boom boot boox bota botb boto bott boua boum bout boxa btaa btcc btcx btob bttb buat buba bubb bubo bubu buca bucc buco bucu bum- buma bumb but- buta buto butt buxa c-bo caaa caab caac caam caat caba cabo cabu cac- caca cacc cacm caco cama camb camc camm camo camt camx cat- cata catb catc catm cato catt catu cauc caum cauo caut caux caxa cbac cbat cbax cbbc cbca cbcc cbcm cbct cbcu cbot cbox cbta cbtc cbux cbxa ccaa ccab ccac ccam ccat ccba ccbc ccca cccb cccc cccm cccu ccma ccmb ccmc ccmm ccob ccoc ccom cctb cctc cctt ccuc ccut cmaa cmac cmax cmba cmbc cmbx cmcc cmmb cmmc cmoc cmot cmta cmtc cmtu coat coax coba cobb cobo cobu coca coco coct cocu com- coma comb comc comm como comu coob coom coot cota cotb cotc coto cott cotu coua coub cout coux coxa ctab ctba ctca ctma ctmo ctot ctta cuau cub- cuba cubb cuca cucc cucm cum- cuma cumt cut- cuta cutc cuto cutt cxxx maaa maac maam maat maba mabo mabu mac- maca macb macc maco mact macu macx mama mamc mamo mamu maoc mata matc mato matt matu maua maum maut maux maxx mbac mbam mbba mbca mbou mbox mbta mcaa mcac mcat mcba mcbc mcca mccc mccx mcmc mcmt mcmx mcot mctc mctu mcxc mmaa mmab mmac mmcc mmcm mmct mmcx mmmc mmmm mmxx moaa moab moac moam moat moba mobb mobo moca moco moma momo momu mooa moob mooc moot mota motb motm moto mott motu mout moux moxa moxo mtaa mtab mtac mtbc mtbo mtoa mtom mtuc muac mubo muc- mucc mucu muma mumm mumo mumu muta muto mutt mutu muut muxu oaau oama obba obbo obot obox ocab ocac ocam ocat ocbc occa occc occt ocma ocom oct- octa octo ocum omac omam omao ombo ombu omca omma omo- omoa omoo omox omuo ooaa ooba ooma oooo ootb otac otma oto- otoo otta