-up b-p b-u bbb bbc bbe bbk bbo bbp bbq bbt bbu bcb bcc bce bck bco bcp bcq bct bcu be- beb bec bee bek beo bep beq bet beu bkb bkc bke bkk bko bkp bkq bkt bob boc boe bok boo bop boq bot bou bpb bpc bpe bpo bpp bpt bpu bqc bqe bqp bqt btb btc bte btk bto btp btq btt btu bub buc bue buk buo bup but buu c-- cbb cbc cbe cbk cbo cbp cbq cbt cbu ccb ccc cce cck cco ccp cct ccu ce- ceb cec cee cek ceo cep ceq cet ceu ckb ckc cko ckt co- cob coc coe cok coo cop coq cot cou cpb cpc cpe cpk cpo cpp cpq cpt cpu cqb cqc cqo cqt ctb ctc cte ctk cto ctp ctq ctt ctu cub cuc cue cuk cuo cup cuq cut cuu ebb ebc ebe ebk ebo ebp ebq ebt ebu ec- ecb ecc ece eck eco ecq ect ecu eeb eec eee eek eeo eep eet ekb ekc eke eko ekp ekt eku eo- eob eoc eoe eok eoo eop eoq eot eou ep- epb epc epe epo epp epq ept epu eqe eqp eqq eqt equ etb etc ete etk eto etp ett etu eu- eub euc eue eup eut k-t kbb kbc kbe kbk kbo kbp kbu kcb kcc kce kck kcp kct kcu ke- keb kec kee kek keo kep ket kkb kkc kke kkk kkp kkt kku kob koc koe kok koo kop kot kou kpc kpe kpk kpo kpp kpq kpt kpu ktb ktc kte ktk kto ktp ktt ktu kub kuc kue kuk kup kut kuu ob- obb obc obe obk obo obp obt obu oc- ocb occ ock oco ocp oct ocu oeb oec oee oeo oep oet okb okc oke okk oko okp oku oo- oob ooc ook ooo oop oot op- opb opc ope opk opo opp opq opt oqb oqo ot- otb otc ote otk oto otp ott otu ou- ouc oue ouk ouo oup out p-p pbb pbc pbe pbk pbo pbp pbt pbu pcb pcc pce pck pco pcp pcq pct pcu peb pec pee pek peo pep pet peu pkb pkc pke pko pkp pkt pku pob poc poe pok poo pop pot pou ppb ppc ppe ppk ppo ppp ppq ppt ppu pqq pt- ptb ptc pte ptk pto ptp ptq ptt ptu pub puc pue puk pup put puu qbc qbe qbq qcc qco qcp qct qec qee qeo qep qet qoo qop qpc qpp qqk qqq qqu qtc qto qtq qu- que quo qut tbb tbc tbe tbk tbo tbp tbt tbu tcb tcc tce tck tco tcp tct tcu te- teb tec tee tek teo tep teq tet teu tkb tkc tke tkk tko tkp tkt to- tob toc toe tok too top toq tot tou tpb tpc tpe tpk tpo tpp tpq tpt tpu tqo ttb ttc tte ttk tto ttp ttt ttu tub tuc tue tuk tuo tup tut tuu ubb ubc ube ubk ubo ubp ubt ubu ucb ucc uce uck uco ucp uct ucu ueb uec uee uep uet ukb ukc uke ukk ukp uku uob uoc uoe uok uoo uop uot up- upb upc upe upk upo upp upt upu utb utc ute utk uto utp utt utu uuc uue uut uuu

bbbb bbbq bbeb bbet bcbc bcbp bccc bcec bcet bcpp bctc bcuc bcup bebb bebe bebo beck becu beeb beek beep beet beke beko beo- beok beot bepo betc bete beto bett betu beuk bkpt bobb bobe bobo bobu boce bock boco bocq bocu boec boee boeo boep boet boke boko boku boob booc booe book boop boot bope bopp boqe botb bote boto bott boue bouk boup bout bpcp bpoe bpot bque btbp btcc btec btek btob btqk bttb bubb bube bubo bubq bubu bucc buce buck buco bucu bueu buke bukk buko buku bupc but- bute buto butt c-bo cbbc cbcc cbce cbcp cbct cbcu cbec cbee cbet cbko cboq cbot cbpc cbpp cbtc ccbc cccb cccc cccp cccu ccee ccob ccoc ccpe ccpp cctb cctc cctt ccuc ccup ccut cebp cebu cec- cece ceco cecp cect ceeb ceec ceke ceop ceou cepc cepe cepo cepp cept cet- cete ceto cetp ckbc ckbe ckck ckco ckob ckoc ckoo ckot ckpc cktb cobb cobe cobo cobu coce cock coco cocp coct cocu coep cok- coke coko coob cook coop coot cope copo copp copt cotb cotc cote coto cott cotu coub coue couk coup cout cpbc cpce cpcu cpeb cpep cptp ctcp ctec ctep ctot ctpo ctpp cub- cubb cube cucc cuce cuck cucq cuek cuk- cuke cupe cupo cupp cut- cutc cute cuto cutt ebbc ebbo ebcc eboe eboo ebpo ecbc ecbe eccb eccc ecce ecco ecct ecko eco- ecop ecot ecou ecpp ect- ectc ecto eeee eeke eeoc eetc eete eetu ekco ekeb ekek eket ekpe ekpo eotc eoto epcc epec epee epoc epot eppc eppo eppp epte epub eqpt equ- eque equo etbc etcc etco etec etee etoe etok ette etto ettu eubc kbbb kbbc kbbe kbbk kbbo kbbt kbbu kbcb kbce kbck kbco kbcq kbct kbcu kbeb kbec kbee kbek kbeo kbet kbkb kbkk kbko kbob kboc kboe kbok kboo kboq kbot kbpc kbpe kbpk kbpo kbpt kbpu kbqb kbtb kbtc kbte kbtk kbto kbtq kbtt kbub kbuc kbue kbuk kbup kbut kbuu kcbc kcbk kcbq kcbu kccb kccc kcck kcct kccu kceb kcec kcee kceo kcep kcet kceu kckc kckk kcko kcob kcoe kcot kcou kcpc kcpo kcpq kcpt kcpu kcqq kctb kctc kcte kcto kctu kcub kcue kcuk kcup kebb kebc kebe kebt kebu keck keco keek keep keet kekb kekc keke keko keku keok kep- kepc kepe kept kepu keqb ket- ketc kete ketk keto ketp kett ketu keup kkbb kkbe kkbo kkbq kkbt kkcb kkck kkco kkcq kkct kkeq kkkk kkob kkoo kkot kkpc kkpk kkpt kkqq kktc kktk kktu kkup kkut kkuu kobb kobc kobe kobk kobo kobu