-up a-a a-b aaa aab aae aak aan aao aap aau ab- aba abb abe abk abn abo abp abu aea aeb aee aek aen aeo aep aeu aka akb ake akk akn ako akp aku an- ana anb ane ank ann ano anp anu aoa aob aoe aok aon aoo aop aou ap- apa apb ape apk apn apo app apu au- aua aub aue auk aun auo aup b-p b-u baa bab bae bak ban bao bap bau bba bbb bbe bbk bbn bbo bbp bbu be- bea beb bee bek ben beo bep beu bka bkb bke bkk bkn bko bkp bna bnb bne bnk bnn bno bnp bnu boa bob boe bok bon boo bop bou bpa bpb bpe bpn bpo bpp bpu bua bub bue buk bun buo bup buu eaa eab eae eak ean eao eap eau eba ebb ebe ebk ebn ebo ebp ebu eea eeb eee eek een eeo eep eka ekb eke eko ekp eku en- ena enb ene enk enn eno enp enu eo- eoa eob eoe eok eon eoo eop eou ep- epa epb epe epn epo epp epu eu- eua eub eue eun eup ka- kaa kab kae kak kan kao kap kau kba kbb kbe kbk kbn kbo kbp kbu ke- kea keb kee kek ken keo kep kkb kke kkk kkn kkp kku kn- kna kne knk knn kno knp knu koa kob koe kok kon koo kop kou kpa kpe kpk kpn kpo kpp kpu kub kue kuk kun kup kuu naa nab nae nak nan nao nap nau nba nbb nbe nbk nbn nbo nbp nbu ne- nea neb nee nek nen neo nep neu nka nke nkk nkn nko nkp nku nna nnb nne nnk nnn nno nnp nnu no- noa nob noe nok non noo nop nou npa npb npe npn npo npp npu nua nub nue nuk nun nuo nup nuu oaa oab oae oak oan oao oap oau ob- oba obb obe obk obn obo obp obu oea oeb oee oen oeo oep oka okb oke okk oko okp oku on- ona onb one onk onn ono onp onu oo- ooa oob ook oon ooo oop op- opa opb ope opk opn opo opp ou- oua oue ouk oun ouo oup p-p paa pab pae pak pan pao pap pau pba pbb pbe pbk pbn pbo pbp pbu pea peb pee pek pen peo pep peu pka pkb pke pkn pko pkp pku pn- pna pnb pne pnk pnn pno pnp pnu poa pob poe pok pon poo pop pou ppa ppb ppe ppk ppn ppo ppp ppu pua pub pue puk pun pup puu ua- uaa uab uae uak uan uao uap uau uba ubb ube ubk ubn ubo ubp ubu uea ueb uee uen uep uka ukb uke ukk ukn ukp uku un- una unb une unk unn uno unp unu uoa uob uoe uok uon uoo uop up- upa upb upe upk upn upo upp upu uua uue uun uuu