-er -up a-a a-b a-c a-t aaa aab aac aae aan aao aap aar aat aau ab- aba abb abc abe abn abo abp abr abt abu ac- aca acb acc ace acn aco acp acr act acu aea aeb aec aee aen aeo aep aer aet aeu an- ana anb anc ane ann ano anp anr ant anu aoa aob aoc aoe aon aoo aop aor aot aou ap- apa apb apc ape apn apo app apr apt apu ar- ara arb arc are arn aro arp arr art aru at- ata atb atc ate atn ato atp atr att atu au- aua aub auc aue aun auo aup aur aut b-p b-u baa bab bac bae ban bao bap bar bat bau bba bbb bbc bbe bbn bbo bbp bbr bbt bbu bca bcb bcc bce bcn bco bcp bcr bct bcu be- bea beb bec bee ben beo bep ber bet beu bna bnb bnc bne bnn bno bnp bnr bnt bnu boa bob boc boe bon boo bop bor bot bou bpa bpb bpc bpe bpn bpo bpp bpr bpt bpu bra brb bre brn bro brp brr brt bru bta btb btc bte btn bto btp btr btt btu bua bub buc bue bun buo bup bur but buu c-- caa cab cac cae can cao cap car cat cau cba cbb cbc cbe cbn cbo cbp cbr cbt cbu cca ccb ccc cce ccn cco ccp ccr cct ccu ce- cea ceb cec cee cen ceo cep cer cet ceu cn- cna cnb cnc cne cnn cno cnp cnr cnt cnu co- coa cob coc coe con coo cop cor cot cou cpa cpb cpc cpe cpn cpo cpp cpr cpt cpu cra crb crc cre crn cro crp crr crt cru cta ctb ctc cte ctn cto ctp ctr ctt ctu cua cub cuc cue cun cuo cup cur cut cuu eaa eab eac eae ean eao eap ear eat eau eba ebb ebc ebe ebn ebo ebp ebr ebt ebu ec- eca ecb ecc ece ecn eco ecr ect ecu eea eeb eec eee een eeo eep eer eet en- ena enb enc ene enn eno enp enr ent enu eo- eoa eob eoc eoe eon eoo eop eor eot eou ep- epa epb epc epe epn epo epp epr ept epu era erb erc ere ern ero erp err ert eru eta etb etc ete etn eto etp etr ett etu eu- eua eub euc eue eun eup eur eut naa nab nac nae nan nao nap nar nat nau nba nbb nbc nbe nbn nbo nbp nbr nbt nbu nca ncb ncc nce ncn nco ncp ncr nct ncu ne- nea neb nec nee nen neo nep ner net neu nna nnb nnc nne nnn nno nnp nnt nnu no- noa nob noc noe non noo nop nor not nou npa npb npc npe npn npo npp npr npt npu nra nrb nrc nre nrn nro nrp nrr nrt nru nta ntb ntc nte ntn nto ntp ntr ntt ntu nua nub nuc nue nun nuo nup nur nut nuu oaa oab oac oae oan oao oap oar oat oau ob- oba obb obc obe obn obo obp obr obt obu oc- oca ocb occ ocn oco ocp ocr oct ocu oea oeb oec oee oen oeo oep oer oet on- ona onb onc one onn ono onp onr ont onu oo- ooa oob ooc oon ooo oop oor oot op- opa opb opc ope opn opo opp opr opt or- ora orb orc ore orn oro orp orr ort oru ot- ota otb otc ote otn oto otp otr ott otu ou- oua ouc oue oun ouo oup our out p-p paa pab pac pae pan pao pap par pat pau pba pbb pbc pbe pbn pbo pbp pbr pbt pbu pca pcb pcc pce pcn pco pcp pcr pct pcu pea peb pec pee pen peo pep per pet peu pn- pna pnb pnc pne pnn pno pnp pnr pnt pnu poa pob poc poe pon poo pop por pot pou ppa ppb ppc ppe ppn ppo ppp ppr ppt ppu pra prb prc pre prn pro prp prr prt pru pt- pta ptb ptc pte ptn pto ptp ptr ptt ptu pua pub puc pue pun pup pur put puu ra- raa rab rac rae ran rao rap rar rat rau rba rbb rbc rbe rbn rbo rbp rbr rbt rbu rca rcb rcc rce rcn rco rcp rcr rct rcu re- rea reb rec ree ren reo rep rer ret reu rna rnb rnc rnn rno rnp rnr rnt rnu roa rob roc roe ron roo rop ror rot rou rpa rpb rpc rpe rpn rpo rpp rpr rpt rpu rra rrb rrc rrn rrp rrr rrt rru rta rtb rtc rte rtn rto rtp rtr rtt rtu rua rub ruc rue run ruo rup rur rut ruu taa tab tac tae tan tao tap tar tat tau tba tbb tbc tbe tbn tbo tbp tbr tbt tbu tca tcb tcc tce tcn tco tcp tcr tct tcu te- tea teb tec tee ten teo tep ter tet teu tna tnb tnc tne tnn tno tnp tnr tnt to- toa tob toc toe ton too top tor tot tou tpa tpb tpc tpe tpn tpo tpp tpr tpt tpu tra trb trc tre trn tro trp trr trt tru tta ttb ttc tte ttn tto ttp ttr ttt ttu tua tub tuc tue tun tuo tup tur tut tuu ua- uaa uab uac uae uan uao uap uar uat uau uba ubb ubc ube ubn ubo ubp ubr ubt ubu uca ucb ucc uce ucn uco ucp ucr uct ucu uea ueb uec uee uen uep uer uet un- una unb unc une unn uno unp unr unt unu uoa uob uoc uoe uon uoo uop uor uot up- upa upb upc upe upn upo upp upr upt upu ur- ura urb urc ure urn uro