-er a-a a-b a-c a-q a-t aaa aab aac aad aae aaf aak aaq aar aat aau ab- aba abb abc abd abe abf abk abq abr abt abu ac- aca acb acc acd ace acf ack acq acr act acu ad- ada adb adc add ade adf adk adq adr adt adu aea aeb aec aed aee aef aek aeq aer aet aeu af- afa afb afc afd afe aff afk afq afr aft afu aka akb akc akd ake akk akr aku aqa aqc aqf aqr aqt ar- ara arb arc ard are arf ark arq arr art aru at- ata atb atc atd ate atf atr att atu au- aua aub auc aud aue auf auk aur aut b-u baa bab bac bad bae baf bak baq bar bat bau bba bbb bbc bbd bbe bbf bbk bbq bbr bbt bbu bca bcb bcc bcd bce bcf bck bcq bcr bct bcu bda bdb bdc bdd bde bdf bdk bdq bdr bdt bdu be- bea beb bec bed bee bef bek beq ber bet beu bfa bfb bfc bfd bfe bff bfq bfr bft bfu bka bkb bkc bke bkf bkk bkq bkr bkt bqc bqd bqe bqt bra brb brd bre brf brk brq brr brt bru bta btb btc btd bte btf btk btq btr btt btu bua bub buc bud bue buf buk bur but buu c-- caa cab cac cad cae caf cak caq car cat cau cba cbb cbc cbd cbe cbf cbk cbq cbr cbt cbu cca ccb ccc ccd cce ccf cck ccr cct ccu cda cdb cdc cdd cde cdf cdk cdq cdr cdt cdu ce- cea ceb cec ced cee cef cek ceq cer cet ceu cfa cfb cfc cfd cfe cff cfk cfq cfr cft cfu cka ckb ckc ckd ckt cqa cqb cqc cqd cqf cqt cra crb crc crd cre crf crk crq crr crt cru cta ctb ctc ctd cte ctf ctk ctq ctr ctt ctu cua cub cuc cud cue cuf cuk cuq cur cut cuu daa dab dac dad dae daf dak daq dar dat dau dba dbb dbc dbd dbe dbf dbk dbq dbr dbt dbu dca dcb dcc dcd dce dcf dck dcr dct dcu dda ddb ddc ddd dde ddf ddk ddq ddr ddt ddu de- dea deb dec ded dee def dek deq der det deu dfa dfb dfc dfd dfe dff dfk dfq dfr dft dfu dka dkb dkc dke dkk dkr dkt dku dqa dqe dra drb drc drd dre drk drq drr drt dru dta dtb dtc dtd dte dtf dtk dtr dtt dtu dua dub duc dud due duf duk dur dut eaa eab eac ead eae eaf eak ear eat eau eba ebb ebc ebd ebe ebf ebk ebq ebr ebt ebu ec- eca ecb ecc ecd ece ecf eck ecq ecr ect ecu ed- eda edb edc edd ede edf edk edr edt edu eea eeb eec eed eee eef eek eer eet ef- efa efb efc efd efe eff efr eft eka ekb ekc ekd eke ekf ekr ekt eku eqa eqe eqf eqq eqt equ era erb erc erd ere erf erk erq err ert eru eta etb etc etd ete etf etk etr ett etu eu- eua eub euc eud eue euf eur eut faa fab fac fad fae faf fak faq far fat fau fba fbb fbc fbd fbe fbf fbk fbr fbt fbu fca fcb fcc fcd fce fcf fck fcr fct fcu fda fdb fdc fdd fde fdf fdk fdr fdt fdu fea feb fec fed fee fef fek fer fet feu ffa ffc ffd ffe fff ffk ffr fft ffu fka fkb fkc fkf fkk fkt fqt fra frb frc frd fre frf frk frq frr frt fru fta ftb ftc ftd fte ftf ftk ftq ftr ftt ftu fua fub fud fue fuf fuk fur fut fuu k-t ka- kaa kab kac kad kae kaf kak kar kat kau kba kbb kbc kbd kbe kbf kbk kbr kbu kca kcb kcc kcd kce kck kcr kct kcu kda kdb kdc kde kdf kdk kdr kdt kdu ke- kea keb kec ked kee kef kek ker ket kfa kfc kfd kff kfu kkb kkc kke kkk kkr kkt kku kqa kra krc krd krf krk krr krt kru kta ktb ktc kte ktf ktk ktr ktt ktu kub kuc kud kue kuk kur kut kuu qaa qac qad qaf qar qat qau qba qbc qbd qbe qbq qca qcc qcd qct qda qdb qdr qdt qec qed qee qef qet qfa qfb qfc qfd qfe qff qft qqk qqq qqu qra qrb qrc qre qrt qru qta qtc qtd qtq qtr qu- qua qud que qur qut ra- raa rab rac rad rae raf rak raq rar rat rau rba rbb rbc rbd rbe rbf rbk rbr rbt rbu rca rcb rcc rcd rce rcf rcr rct rcu rda rdb rdc rdd rde rdf rdr rdt rdu re- rea reb rec red ree ref rek req rer ret reu rfa rfb rfc rfd rfe rff rfk rfq rfr rft rfu rkb rkc rke rkf rkk rkt rku rqc rra rrb rrc rrd rrf rrk rrq rrr rrt rru rta rtb rtc rtd rte rtf rtk rtq rtr rtt rtu rua rub ruc rud rue ruf ruk rur rut ruu taa tab tac tad tae taf tak taq tar tat tau tba tbb tbc tbd tbe tbf tbk tbr tbt tbu tca tcb tcc tcd tce tcf tck tcr tct tcu tda tdb tdc tdd tde tdf tdk tdr tdt tdu te- tea teb tec ted tee tef tek teq ter tet teu tfa tfb tfc tfd tfe tff tfk tfr tft tfu tka tkb tkc tke tkk tkr tkt tra trb trc trd tre trf trk trq trr trt tru tta ttb ttc ttd tte ttf ttk ttr ttt ttu tua tub tuc tud tue tuf tuk tur tut tuu ua- uaa uab uac uad