-er -up a-a a-b a-c aaa aab aac aae aam aan aao aap aar aau ab- aba abb abc abe abm abn abo abp abr abu ac- aca acb acc ace acm acn aco acp acr acu aea aeb aec aee aem aen aeo aep aer aeu ama amb amc ame amm amn amo amp amr amu an- ana anb anc ane anm ann ano anp anr anu aoa aob aoc aoe aom aon aoo aop aor aou ap- apa apb apc ape apm apn apo app apr apu ar- ara arb arc are arm arn aro arp arr aru au- aua aub auc aue aum aun auo aup aur b-p b-u baa bab bac bae bam ban bao bap bar bau bba bbb bbc bbe bbm bbn bbo bbp bbr bbu bca bcb bcc bce bcm bcn bco bcp bcr bcu be- bea beb bec bee bem ben beo bep ber beu bma bmb bmc bme bmm bmn bmo bmp bmr bmu bna bnb bnc bne bnn bno bnp bnr bnu boa bob boc boe bom bon boo bop bor bou bpa bpb bpc bpe bpm bpn bpo bpp bpr bpu bra brb bre brm brn bro brp brr bru bua bub buc bue bum bun buo bup bur buu c-- caa cab cac cae cam can cao cap car cau cba cbb cbc cbe cbm cbn cbo cbp cbr cbu cca ccb ccc cce ccm ccn cco ccp ccr ccu ce- cea ceb cec cee cem cen ceo cep cer ceu cma cmb cmc cme cmm cmn cmo cmp cmr cmu cn- cna cnb cnc cne cnm cnn cno cnp cnr cnu co- coa cob coc coe com con coo cop cor cou cpa cpb cpc cpe cpm cpn cpo cpp cpr cpu cra crb crc cre crm crn cro crp crr cru cua cub cuc cue cum cun cuo cup cur cuu eaa eab eac eae eam ean eao eap ear eau eba ebb ebc ebe ebm ebn ebo ebp ebr ebu ec- eca ecb ecc ece ecm ecn eco ecr ecu eea eeb eec eee eem een eeo eep eer em- ema emb emc eme emm emn emo emp emr emu en- ena enb enc ene enm enn eno enp enr enu eo- eoa eob eoc eoe eom eon eoo eop eor eou ep- epa epb epc epe epm epn epo epp epr epu era erb erc ere erm ern ero erp err eru eu- eua eub euc eue eun eup eur m-o m-r maa mab mac mae mam man mao map mar mau mba mbb mbc mbe mbm mbo mbp mbr mbu mc- mca mcb mcc mce mcm mcn mco mcp mcr mcu mea meb mec mee mem men meo mep mer meu mma mmb mmc mme mmm mmn mmo mmp mmr mmu mna mnb mnc mne mnm mnn mno mnp mnr mnu moa mob moc moe mom mon moo mop mor mou mpa mpb mpc mpe mpm mpn mpo mpp mpr mpu mra mrb mrc mre mrm mrn mro mrp mrr mru mua mub muc mue mum mun mup mur muu naa nab nac nae nam nan nao nap nar nau nba nbb nbc nbe nbm nbn nbo nbp nbr nbu nca ncb ncc nce ncm ncn nco ncp ncr ncu ne- nea neb nec nee nem nen neo nep ner neu nma nmb nmc nme nmm nmn nmo nmp nmr nmu nna nnb nnc nne nnm nnn nno nnp nnu no- noa nob noc noe nom non noo nop nor nou npa npb npc npe npm npn npo npp npr npu nra nrb nrc nre nrm nrn nro nrp nrr nru nua nub nuc nue num nun nuo nup nur nuu oaa oab oac oae oam oan oao oap oar oau ob- oba obb obc obe obm obn obo obp obr obu oc- oca ocb occ ocm ocn oco ocp ocr ocu oea oeb oec oee oem oen oeo oep oer om- oma omb omc ome omm omn omo omp omr omu on- ona onb onc one onn ono onp onr onu oo- ooa oob ooc oom oon ooo oop oor op- opa opb opc ope opm opn opo opp opr or- ora orb orc ore orm orn oro orp orr oru ou- oua ouc oue oum oun ouo oup our p-p paa pab pac pae pam pan pao pap par pau pba pbb pbc pbe pbm pbn pbo pbp pbr pbu pca pcb pcc pce pcm pcn pco pcp pcr pcu pea peb pec pee pem pen peo pep per peu pma pmb pmc pme pmm pmn pmo pmp pmr pmu pn- pna pnb pnc pne pnm pnn pno pnp pnr pnu poa pob poc poe pom pon poo pop por pou ppa ppb ppc ppe ppm ppn ppo ppp ppr ppu pra prb prc pre prm prn pro prp prr pru pua pub puc pue pum pun pup pur puu ra- raa rab rac rae ram ran rao rap rar rau rba rbb rbc rbe rbm rbn rbo rbp rbr rbu rca rcb rcc rce rcm rcn rco rcp rcr rcu re- rea reb rec ree rem ren reo rep rer reu rma rmb rmc rme rmm rmn rmo rmp rmr rna rnb rnc rnm rnn rno rnp rnr rnu roa rob roc roe rom ron roo rop ror rou rpa rpb rpc rpe rpm rpn rpo rpp rpr rpu rra rrb rrc rrm rrn rrp rrr rru rua rub ruc rue rum run ruo rup rur ruu ua- uaa uab uac uae uam uan uao uap uar uau uba ubb ubc ube ubn ubo ubp ubr ubu uca ucb ucc uce ucm ucn uco ucp ucr ucu uea ueb uec uee uem uen uep uer um- uma umb umc ume umm umn umo ump umr umu un- una unb unc une unm unn uno unp unr unu uoa uob uoc uoe uom uon uoo uop uor up- upa upb upc upe upm upn upo upp upr upu ur- ura urb