a-a a-b a-c a-q a-t aaa aab aac aad aae aak aao aaq aat aau ab- aba abb abc abd abe abk abo abq abt abu ac- aca acb acc acd ace ack aco acq act acu ad- ada adb adc add ade adk ado adq adt adu aea aeb aec aed aee aek aeo aeq aet aeu aka akb akc akd ake akk ako aku aoa aob aoc aod aoe aok aoo aot aou aqa aqc aqo aqt at- ata atb atc atd ate ato att atu au- aua aub auc aud aue auk auo aut b-u baa bab bac bad bae bak bao baq bat bau bba bbb bbc bbd bbe bbk bbo bbq bbt bbu bca bcb bcc bcd bce bck bco bcq bct bcu bda bdb bdc bdd bde bdk bdo bdq bdt bdu be- bea beb bec bed bee bek beo beq bet beu bka bkb bkc bke bkk bko bkq bkt boa bob boc bod boe bok boo boq bot bou bqc bqd bqe bqt bta btb btc btd bte btk bto btq btt btu bua bub buc bud bue buk buo but buu c-- caa cab cac cad cae cak cao caq cat cau cba cbb cbc cbd cbe cbk cbo cbq cbt cbu cca ccb ccc ccd cce cck cco cct ccu cda cdb cdc cdd cde cdk cdo cdq cdt cdu ce- cea ceb cec ced cee cek ceo ceq cet ceu cka ckb ckc ckd cko ckt co- coa cob coc cod coe cok coo coq cot cou cqa cqb cqc cqd cqo cqt cta ctb ctc ctd cte ctk cto ctq ctt ctu cua cub cuc cud cue cuk cuo cuq cut cuu daa dab dac dad dae dak dao daq dat dau dba dbb dbc dbd dbe dbk dbo dbq dbt dbu dca dcb dcc dcd dce dck dco dct dcu dda ddb ddc ddd dde ddk ddo ddq ddt ddu de- dea deb dec ded dee dek deo deq det deu dka dkb dkc dke dkk dko dkt dku doa dob doc dod doe dok doo doq dot dou dqa dqe dta dtb dtc dtd dte dtk dto dtt dtu dua dub duc dud due duk duo dut eaa eab eac ead eae eak eao eat eau eba ebb ebc ebd ebe ebk ebo ebq ebt ebu ec- eca ecb ecc ecd ece eck eco ecq ect ecu ed- eda edb edc edd ede edk edo edt edu eea eeb eec eed eee eek eeo eet eka ekb ekc ekd eke eko ekt eku eo- eoa eob eoc eod eoe eok eoo eoq eot eou eqa eqe eqq eqt equ eta etb etc etd ete etk eto ett etu eu- eua eub euc eud eue eut k-t ka- kaa kab kac kad kae kak kao kat kau kba kbb kbc kbd kbe kbk kbo kbu kca kcb kcc kcd kce kck kct kcu kda kdb kdc kde kdk kdo kdt kdu ke- kea keb kec ked kee kek keo ket kkb kkc kke kkk kkt kku koa kob koc kod koe kok koo kot kou kqa kta ktb ktc kte ktk kto ktt ktu kub kuc kud kue kuk kut kuu oaa oab oac oad oae oak oao oaq oat oau ob- oba obb obc obd obe obk obo obt obu oc- oca ocb occ ocd ock oco oct ocu oda odb odc odd ode odo odt odu oea oeb oec oed oee oeo oet oka okb okc okd oke okk oko oku oo- ooa oob ooc ood ook ooo oot oqb oqo ot- ota otb otc otd ote otk oto ott otu ou- oua ouc oud oue ouk ouo out qaa qac qad qat qau qba qbc qbd qbe qbq qca qcc qcd qco qct qda qdb qdt qec qed qee qeo qet qoo qqk qqq qqu qta qtc qtd qto qtq qu- qua qud que quo qut taa tab tac tad tae tak tao taq tat tau tba tbb tbc tbd tbe tbk tbo tbt tbu tca tcb tcc tcd tce tck tco tct tcu tda tdb tdc tdd tde tdk tdo tdt tdu te- tea teb tec ted tee tek teo teq tet teu tka tkb tkc tke tkk tko tkt to- toa tob toc tod toe tok too toq tot tou tqo tta ttb ttc ttd tte ttk tto ttt ttu tua tub tuc tud tue tuk tuo tut tuu ua- uaa uab uac uad uae uak uao uaq uat uau uba ubb ubc ube ubk ubo ubt ubu uca ucb ucc ucd uce uck uco uct ucu uda udb udc udd ude udk udo udt udu uea ueb uec ued uee uet uka ukb ukc uke ukk uku uoa uob uoc uod uoe uok uoo uot uta utb utc utd ute utk uto utt utu uua uuc uue uut uuu