-up a-a a-b a-c a-t aaa aab aac aak aan aap aat aau ab- aba abb abc abk abn abp abt abu ac- aca acb acc ack acn acp act acu aka akb akc akk akn akp aku an- ana anb anc ank ann anp ant anu ap- apa apb apc apk apn app apt apu at- ata atb atc atn atp att atu au- aua aub auc auk aun aup aut b-p b-u baa bab bac bak ban bap bat bau bba bbb bbc bbk bbn bbp bbt bbu bca bcb bcc bck bcn bcp bct bcu bka bkb bkc bkk bkn bkp bkt bna bnb bnc bnk bnn bnp bnt bnu bpa bpb bpc bpn bpp bpt bpu bta btb btc btk btn btp btt btu bua bub buc buk bun bup but buu c-- caa cab cac cak can cap cat cau cba cbb cbc cbk cbn cbp cbt cbu cca ccb ccc cck ccn ccp cct ccu cka ckb ckc ckt cn- cna cnb cnc cnn cnp cnt cnu cpa cpb cpc cpk cpn cpp cpt cpu cta ctb ctc ctk ctn ctp ctt ctu cua cub cuc cuk cun cup cut cuu k-t ka- kaa kab kac kak kan kap kat kau kba kbb kbc kbk kbn kbp kbu kca kcb kcc kck kcn kcp kct kcu kkb kkc kkk kkn kkp kkt kku kn- kna knc knk knn knp knt knu kpa kpc kpk kpn kpp kpt kpu kta ktb ktc ktk ktn ktp ktt ktu kub kuc kuk kun kup kut kuu naa nab nac nak nan nap nat nau nba nbb nbc nbk nbn nbp nbt nbu nca ncb ncc nck ncn ncp nct ncu nka nkc nkk nkn nkp nkt nku nna nnb nnc nnk nnn nnp nnt nnu npa npb npc npn npp npt npu nta ntb ntc ntk ntn ntp ntt ntu nua nub nuc nuk nun nup nut nuu p-p paa pab pac pak pan pap pat pau pba pbb pbc pbk pbn pbp pbt pbu pca pcb pcc pck pcn pcp pct pcu pka pkb pkc pkn pkp pkt pku pn- pna pnb pnc pnk pnn pnp pnt pnu ppa ppb ppc ppk ppn ppp ppt ppu pt- pta ptb ptc ptk ptn ptp ptt ptu pua pub puc puk pun pup put puu taa tab tac tak tan tap tat tau tba tbb tbc tbk tbn tbp tbt tbu tca tcb tcc tck tcn tcp tct tcu tka tkb tkc tkk tkp tkt tna tnb tnc tnk tnn tnp tnt tpa tpb tpc tpk tpn tpp tpt tpu tta ttb ttc ttk ttn ttp ttt ttu tua tub tuc tuk tun tup tut tuu ua- uaa uab uac uak uan uap uat uau uba ubb ubc ubk ubn ubp ubt ubu uca ucb ucc uck ucn ucp uct ucu uka ukb ukc ukk ukn ukp uku un- una unb unc unk unn unp unt unu up- upa upb upc upk upn upp upt upu uta utb utc utk utn utp utt utu uua uuc uun uut uuu