-up a-a a-b a-c aaa aab aac aak aan aao aap aau aav ab- aba abb abc abk abn abo abp abu abv ac- aca acb acc ack acn aco acp acu acv aka akb akc akk akn ako akp aku akv an- ana anb anc ank ann ano anp anu anv aoa aob aoc aok aon aoo aop aou aov ap- apa apb apc apk apn apo app apu apv au- aua aub auc auk aun auo aup auv av- ava avb avc avk avn avo avp avu b-p b-u baa bab bac bak ban bao bap bau bav bba bbb bbc bbk bbn bbo bbp bbu bca bcb bcc bck bcn bco bcp bcu bcv bka bkb bkc bkk bkn bko bkp bkv bna bnb bnc bnk bnn bno bnp bnu bnv boa bob boc bok bon boo bop bou bov bpa bpb bpc bpn bpo bpp bpu bpv bua bub buc buk bun buo bup buu bva bvb bvc bvk bvn bvo bvp bvu bvv c-- caa cab cac cak can cao cap cau cav cba cbb cbc cbk cbn cbo cbp cbu cbv cca ccb ccc cck ccn cco ccp ccu ccv cka ckb ckc cko cn- cna cnb cnc cnn cno cnp cnu cnv co- coa cob coc cok con coo cop cou cov cpa cpb cpc cpk cpn cpo cpp cpu cpv cua cub cuc cuk cun cuo cup cuu cuv cva cvb cvc cvk cvn cvo cvp cvu cvv ka- kaa kab kac kak kan kao kap kau kav kba kbb kbc kbk kbn kbo kbp kbu kca kcb kcc kck kcn kcp kcu kkb kkc kkk kkn kkp kku kkv kn- kna knc knk knn kno knp knu koa kob koc kok kon koo kop kou kpa kpc kpk kpn kpo kpp kpu kpv kub kuc kuk kun kup kuu kva kvb kvk kvn kvo kvp kvv naa nab nac nak nan nao nap nau nav nba nbb nbc nbk nbn nbo nbp nbu nbv nca ncb ncc nck ncn nco ncp ncu ncv nka nkc nkk nkn nko nkp nku nna nnb nnc nnk nnn nno nnp nnu nnv no- noa nob noc nok non noo nop nou nov npa npb npc npn npo npp npu npv nua nub nuc nuk nun nuo nup nuu nuv nva nvb nvc nvk nvn nvp nvu nvv oaa oab oac oak oan oao oap oau oav ob- oba obb obc obk obn obo obp obu obv oc- oca ocb occ ock ocn oco ocp ocu ocv oka okb okc okk oko okp oku on- ona onb onc onk onn ono onp onu oo- ooa oob ooc ook oon ooo oop oov op- opa opb opc opk opn opo opp opv ou- oua ouc ouk oun ouo oup ov- ova ovb ovc ovo ovp ovv p-p paa pab pac pak pan pao pap pau pav pba pbb pbc pbk pbn pbo pbp pbu pca pcb pcc pck pcn pco pcp pcu pcv pka pkb pkc pkn pko pkp pku pn- pna pnb pnc pnk pnn pno pnp pnu pnv poa pob poc pok pon poo pop pou pov ppa ppb ppc ppk ppn ppo ppp ppu ppv pua pub puc puk pun pup puu pva pvb pvc pvk pvn pvo pvp pvu pvv ua- uaa uab uac uak uan uao uap uau uav uba ubb ubc ubk ubn ubo ubp ubu ubv uca ucb ucc uck ucn uco ucp ucu ucv uka ukb ukc ukk ukn ukp uku un- una unb unc unk unn uno unp unu unv uoa uob uoc uok uon uoo uop up- upa upb upc upk upn upo upp upu upv uua uuc uun uuu uva uvb uvc uvo uvu uvv v-a vaa vab vac vak van vao vap vau vav vba vbc vbk vbo vbv vca vcc vcn vco vcp vcu vka vkb vkp vn- vna vno vnp vnu vnv voa vob voc vok von voo vop vou vov vpa vpb vpc vpk vpn vpo vpp vpu vuk vup vuv vva vvb vvc vvo vvv