-er a-a a-b a-c a-q a-t a-z aaa aab aac aae aak aaq aar aat aau aaz ab- aba abb abc abe abk abq abr abt abu abz ac- aca acb acc ace ack acq acr act acu acz aea aeb aec aee aek aeq aer aet aeu aez aka akb akc ake akk akr aku aqa aqc aqr aqt ar- ara arb arc are ark arq arr art aru arz at- ata atb atc ate atr att atu atz au- aua aub auc aue auk aur aut auz az- aza azb aze azq azt azu azz b-u baa bab bac bae bak baq bar bat bau baz bba bbb bbc bbe bbk bbq bbr bbt bbu bca bcb bcc bce bck bcq bcr bct bcu bcz be- bea beb bec bee bek beq ber bet beu bez bka bkb bkc bke bkk bkq bkr bkt bqc bqe bqt bra brb bre brk brq brr brt bru brz bta btb btc bte btk btq btr btt btu btz bua bub buc bue buk bur but buu buz bza bze bzr bzu bzz c-- caa cab cac cae cak caq car cat cau caz cba cbb cbc cbe cbk cbq cbr cbt cbu cbz cca ccb ccc cce cck ccr cct ccu ccz ce- cea ceb cec cee cek ceq cer cet ceu cez cka ckb ckc ckt cqa cqb cqc cqt cra crb crc cre crk crq crr crt cru crz cta ctb ctc cte ctk ctq ctr ctt ctu ctz cua cub cuc cue cuk cuq cur cut cuu cuz cz- czc cze czk czt eaa eab eac eae eak ear eat eau eaz eba ebb ebc ebe ebk ebq ebr ebt ebu ec- eca ecb ecc ece eck ecq ecr ect ecu eea eeb eec eee eek eer eet eka ekb ekc eke ekr ekt eku eqa eqe eqq eqt equ era erb erc ere erk erq err ert eru erz eta etb etc ete etk etr ett etu etz eu- eua eub euc eue eur eut eze ezr ezz k-t k-z ka- kaa kab kac kae kak kar kat kau kaz kba kbb kbc kbe kbk kbr kbu kbz kca kcb kcc kce kck kcr kct kcu ke- kea keb kec kee kek ker ket kez kkb kkc kke kkk kkr kkt kku kqa kra krc krk krr krt kru kta ktb ktc kte ktk ktr ktt ktu kub kuc kue kuk kur kut kuu qaa qac qar qat qau qaz qba qbc qbe qbq qca qcc qct qec qee qet qqk qqq qqu qra qrb qrc qre qrt qru qta qtc qtq qtr qtz qu- qua que qur qut ra- raa rab rac rae rak raq rar rat rau raz rba rbb rbc rbe rbk rbr rbt rbu rca rcb rcc rce rcr rct rcu re- rea reb rec ree rek req rer ret reu rez rkb rkc rke rkk rkt rku rkz rqc rra rrb rrc rrk rrq rrr rrt rru rta rtb rtc rte rtk rtq rtr rtt rtu rtz rua rub ruc rue ruk rur rut ruu ruz rza rzb rze taa tab tac tae tak taq tar tat tau taz tba tbb tbc tbe tbk tbr tbt tbu tbz tca tcb tcc tce tck tcr tct tcu te- tea teb tec tee tek teq ter tet teu tez tka tkb tkc tke tkk tkr tkt tkz tra trb trc tre trk trq trr trt tru trz tta ttb ttc tte ttk ttr ttt ttu tua tub tuc tue tuk tur tut tuu tuz tza tze tzu ua- uaa uab uac uae uak uaq uar uat uau uaz uba ubb ubc ube ubk ubr ubt ubu uca ucb ucc uce uck ucr uct ucu uea ueb uec uee uer uet uka ukb ukc uke ukk ukr uku ukz ur- ura urb urc ure urk urr urt uru urz uta utb utc ute utk utr utt utu utz uua uuc uue uur uut uuu uza uzb uzu zaa zab zac zak zaq zar zat zaz zbb zbc zbr zbt zce zcq zea zeb zec zee zek zeq zer zet zez zka zta zte ztr zub zuc zuk zur zut zuz zzr zzt zzz