-up a-a a-b a-c a-t aaa aab aac aae aak aan aap aat aau ab- aba abb abc abe abk abn abp abt abu ac- aca acb acc ace ack acn acp act acu aea aeb aec aee aek aen aep aet aeu aka akb akc ake akk akn akp aku an- ana anb anc ane ank ann anp ant anu ap- apa apb apc ape apk apn app apt apu at- ata atb atc ate atn atp att atu au- aua aub auc aue auk aun aup aut b-p b-u baa bab bac bae bak ban bap bat bau bba bbb bbc bbe bbk bbn bbp bbt bbu bca bcb bcc bce bck bcn bcp bct bcu be- bea beb bec bee bek ben bep bet beu bka bkb bkc bke bkk bkn bkp bkt bna bnb bnc bne bnk bnn bnp bnt bnu bpa bpb bpc bpe bpn bpp bpt bpu bta btb btc bte btk btn btp btt btu bua bub buc bue buk bun bup but buu c-- caa cab cac cae cak can cap cat cau cba cbb cbc cbe cbk cbn cbp cbt cbu cca ccb ccc cce cck ccn ccp cct ccu ce- cea ceb cec cee cek cen cep cet ceu cka ckb ckc ckt cn- cna cnb cnc cne cnn cnp cnt cnu cpa cpb cpc cpe cpk cpn cpp cpt cpu cta ctb ctc cte ctk ctn ctp ctt ctu cua cub cuc cue cuk cun cup cut cuu eaa eab eac eae eak ean eap eat eau eba ebb ebc ebe ebk ebn ebp ebt ebu ec- eca ecb ecc ece eck ecn ect ecu eea eeb eec eee eek een eep eet eka ekb ekc eke ekp ekt eku en- ena enb enc ene enk enn enp ent enu ep- epa epb epc epe epn epp ept epu eta etb etc ete etk etn etp ett etu eu- eua eub euc eue eun eup eut k-t ka- kaa kab kac kae kak kan kap kat kau kba kbb kbc kbe kbk kbn kbp kbu kca kcb kcc kce kck kcn kcp kct kcu ke- kea keb kec kee kek ken kep ket kkb kkc kke kkk kkn kkp kkt kku kn- kna knc kne knk knn knp knt knu kpa kpc kpe kpk kpn kpp kpt kpu kta ktb ktc kte ktk ktn ktp ktt ktu kub kuc kue kuk kun kup kut kuu naa nab nac nae nak nan nap nat nau nba nbb nbc nbe nbk nbn nbp nbt nbu nca ncb ncc nce nck ncn ncp nct ncu ne- nea neb nec nee nek nen nep net neu nka nkc nke nkk nkn nkp nkt nku nna nnb nnc nne nnk nnn nnp nnt nnu npa npb npc npe npn npp npt npu nta ntb ntc nte ntk ntn ntp ntt ntu nua nub nuc nue nuk nun nup nut nuu p-p paa pab pac pae pak pan pap pat pau pba pbb pbc pbe pbk pbn pbp pbt pbu pca pcb pcc pce pck pcn pcp pct pcu pea peb pec pee pek pen pep pet peu pka pkb pkc pke pkn pkp pkt pku pn- pna pnb pnc pne pnk pnn pnp pnt pnu ppa ppb ppc ppe ppk ppn ppp ppt ppu pt- pta ptb ptc pte ptk ptn ptp ptt ptu pua pub puc pue puk pun pup put puu taa tab tac tae tak tan tap tat tau tba tbb tbc tbe tbk tbn tbp tbt tbu tca tcb tcc tce tck tcn tcp tct tcu te- tea teb tec tee tek ten tep tet teu tka tkb tkc tke tkk tkp tkt tna tnb tnc tne tnk tnn tnp tnt tpa tpb tpc tpe tpk tpn tpp tpt tpu tta ttb ttc tte ttk ttn ttp ttt ttu tua tub tuc tue tuk tun tup tut tuu ua- uaa uab uac uae uak uan uap uat uau uba ubb ubc ube ubk ubn ubp ubt ubu uca ucb ucc uce uck ucn ucp uct ucu uea ueb uec uee uen uep uet uka ukb ukc uke ukk ukn ukp uku un- una unb unc une unk unn unp unt unu up- upa upb upc upe upk upn upp upt upu uta utb utc ute utk utn utp utt utu uua uuc uue uun uut uuu