-er a-a a-b a-c a-q aaa aab aac aad aae aam aan aao aaq aar aau ab- aba abb abc abd abe abm abn abo abq abr abu ac- aca acb acc acd ace acm acn aco acq acr acu ad- ada adb adc add ade adm adn ado adq adr adu aea aeb aec aed aee aem aen aeo aeq aer aeu ama amb amc amd ame amm amn amo amq amr amu an- ana anb anc and ane anm ann ano anq anr anu aoa aob aoc aod aoe aom aon aoo aor aou aqa aqc aqm aqn aqo aqr ar- ara arb arc ard are arm arn aro arq arr aru au- aua aub auc aud aue aum aun auo aur b-u baa bab bac bad bae bam ban bao baq bar bau bba bbb bbc bbd bbe bbm bbn bbo bbq bbr bbu bca bcb bcc bcd bce bcm bcn bco bcq bcr bcu bda bdb bdc bdd bde bdm bdo bdq bdr bdu be- bea beb bec bed bee bem ben beo beq ber beu bma bmb bmc bmd bme bmm bmn bmo bmq bmr bmu bna bnb bnc bnd bne bnn bno bnr bnu boa bob boc bod boe bom bon boo boq bor bou bqc bqd bqe bra brb brd bre brm brn bro brq brr bru bua bub buc bud bue bum bun buo bur buu c-- caa cab cac cad cae cam can cao caq car cau cba cbb cbc cbd cbe cbm cbn cbo cbq cbr cbu cca ccb ccc ccd cce ccm ccn cco ccr ccu cda cdb cdc cdd cde cdm cdn cdo cdq cdr cdu ce- cea ceb cec ced cee cem cen ceo ceq cer ceu cma cmb cmc cmd cme cmm cmn cmo cmq cmr cmu cn- cna cnb cnc cnd cne cnm cnn cno cnr cnu co- coa cob coc cod coe com con coo coq cor cou cqa cqb cqc cqd cqm cqo cra crb crc crd cre crm crn cro crq crr cru cua cub cuc cud cue cum cun cuo cuq cur cuu daa dab dac dad dae dam dan dao daq dar dau dba dbb dbc dbd dbe dbm dbn dbo dbq dbr dbu dca dcb dcc dcd dce dcm dcn dco dcr dcu dda ddb ddc ddd dde ddm ddn ddo ddq ddr ddu de- dea deb dec ded dee dem den deo deq der deu dma dmb dmc dmd dme dmm dmn dmo dmr dmu dna dnb dnc dnd dne dnm dnn dno dnq dnr doa dob doc dod doe dom don doo doq dor dou dqa dqe dqn dra drb drc drd dre drm drn dro drq drr dru dua dub duc dud due dum dun duo dur eaa eab eac ead eae eam ean eao ear eau eba ebb ebc ebd ebe ebm ebn ebo ebq ebr ebu ec- eca ecb ecc ecd ece ecm ecn eco ecq ecr ecu ed- eda edb edc edd ede edm edn edo edr edu eea eeb eec eed eee eem een eeo eer em- ema emb emc emd eme emm emn emo emr emu en- ena enb enc end ene enm enn eno enr enu eo- eoa eob eoc eod eoe eom eon eoo eoq eor eou eqa eqe eqn eqq equ era erb erc erd ere erm ern ero erq err eru eu- eua eub euc eud eue eun eur m-o m-r maa mab mac mad mae mam man mao mar mau mba mbb mbc mbd mbe mbm mbo mbq mbr mbu mc- mca mcb mcc mcd mce mcm mcn mco mcq mcr mcu mda mdb mdc mdd mde mdm mdn mdo mdq mdr mdu mea meb mec med mee mem men meo meq mer meu mma mmb mmc mmd mme mmm mmn mmo mmr mmu mna mnb mnc mne mnm mnn mno mnr mnu moa mob moc mod moe mom mon moo mor mou mqa mqb mqr mra mrb mrc mrd mre mrm mrn mro mrq mrr mru mua mub muc mud mue mum mun mur muu naa nab nac nad nae nam nan nao nar nau nba nbb nbc nbd nbe nbm nbn nbo nbr nbu nca ncb ncc ncd nce ncm ncn nco ncr ncu nda ndb ndc ndd nde ndm ndn ndo ndr ndu ne- nea neb nec ned nee nem nen neo ner neu nma nmb nmc nmd nme nmm nmn nmo nmr nmu nna nnb nnc nne nnm nnn nno nnu no- noa nob noc nod noe nom non noo nor nou nqc nra nrb nrc nrd nre nrm nrn nro nrr nru nua nub nuc nud nue num nun nuo nuq nur nuu oaa oab oac oad oae oam oan oao oaq oar oau ob- oba obb obc obd obe obm obn obo obr obu oc- oca ocb occ ocd ocm ocn oco ocr ocu oda odb odc odd ode odm odn odo odr odu oea oeb oec oed oee oem oen oeo oer om- oma omb omc omd ome omm omn omo omr omu on- ona onb onc ond one onn ono onr onu oo- ooa oob ooc ood oom oon ooo oor oqb oqo or- ora orb orc ord ore orm orn oro orr oru ou- oua ouc oud oue oum oun ouo our qaa qac qad qam qan qar qau qba qbc qbd qbe qbq qca qcc qcd qcm qco qda qdb qdr qec qed qee qem qen qeo qma qmc qme qmr qmu qnb qnd qne qom qoo qor qqq qqu qra qrb qrc qre qrm qru qu- qua qud que qum quo qur ra- raa rab rac rad rae ram ran rao raq rar rau rba rbb rbc rbd rbe rbm rbn rbo rbr rbu rca rcb rcc rcd rce rcm rcn rco rcr rcu rda rdb rdc rdd rde rdm rdn rdo rdr rdu re- rea reb rec red ree rem ren reo req rer reu rma rmb rmc rmd rme rmm rmn rmo rmq