a-a a-b a-c a-q a-t aaa aab aac aae aak aao aaq aat aau ab- aba abb abc abe abk abo abq abt abu ac- aca acb acc ace ack aco acq act acu aea aeb aec aee aek aeo aeq aet aeu aka akb akc ake akk ako aku aoa aob aoc aoe aok aoo aot aou aqa aqc aqo aqt at- ata atb atc ate ato att atu au- aua aub auc aue auk auo aut b-u baa bab bac bae bak bao baq bat bau bba bbb bbc bbe bbk bbo bbq bbt bbu bca bcb bcc bce bck bco bcq bct bcu be- bea beb bec bee bek beo beq bet beu bka bkb bkc bke bkk bko bkq bkt boa bob boc boe bok boo boq bot bou bqc bqe bqt bta btb btc bte btk bto btq btt btu bua bub buc bue buk buo but buu c-- caa cab cac cae cak cao caq cat cau cba cbb cbc cbe cbk cbo cbq cbt cbu cca ccb ccc cce cck cco cct ccu ce- cea ceb cec cee cek ceo ceq cet ceu cka ckb ckc cko ckt co- coa cob coc coe cok coo coq cot cou cqa cqb cqc cqo cqt cta ctb ctc cte ctk cto ctq ctt ctu cua cub cuc cue cuk cuo cuq cut cuu eaa eab eac eae eak eao eat eau eba ebb ebc ebe ebk ebo ebq ebt ebu ec- eca ecb ecc ece eck eco ecq ect ecu eea eeb eec eee eek eeo eet eka ekb ekc eke eko ekt eku eo- eoa eob eoc eoe eok eoo eoq eot eou eqa eqe eqq eqt equ eta etb etc ete etk eto ett etu eu- eua eub euc eue eut k-t ka- kaa kab kac kae kak kao kat kau kba kbb kbc kbe kbk kbo kbu kca kcb kcc kce kck kct kcu ke- kea keb kec kee kek keo ket kkb kkc kke kkk kkt kku koa kob koc koe kok koo kot kou kqa kta ktb ktc kte ktk kto ktt ktu kub kuc kue kuk kut kuu oaa oab oac oae oak oao oaq oat oau ob- oba obb obc obe obk obo obt obu oc- oca ocb occ ock oco oct ocu oea oeb oec oee oeo oet oka okb okc oke okk oko oku oo- ooa oob ooc ook ooo oot oqb oqo ot- ota otb otc ote otk oto ott otu ou- oua ouc oue ouk ouo out qaa qac qat qau qba qbc qbe qbq qca qcc qco qct qec qee qeo qet qoo qqk qqq qqu qta qtc qto qtq qu- qua que quo qut taa tab tac tae tak tao taq tat tau tba tbb tbc tbe tbk tbo tbt tbu tca tcb tcc tce tck tco tct tcu te- tea teb tec tee tek teo teq tet teu tka tkb tkc tke tkk tko tkt to- toa tob toc toe tok too toq tot tou tqo tta ttb ttc tte ttk tto ttt ttu tua tub tuc tue tuk tuo tut tuu ua- uaa uab uac uae uak uao uaq uat uau uba ubb ubc ube ubk ubo ubt ubu uca ucb ucc uce uck uco uct ucu uea ueb uec uee uet uka ukb ukc uke ukk uku uoa uob uoc uoe uok uoo uot uta utb utc ute utk uto utt utu uua uuc uue uut uuu