-er a-a a-c aaa aac aad aae aag aah aak aan aar ac- aca acc acd ace acg ach ack acn acr ad- ada adc add ade adg adh adk adn adr aea aec aed aee aeg aeh aek aen aer ag- aga agc agd age agg agh agk agn agr aha ahc ahd ahe ahg ahh ahk ahn ahr aka akc akd ake akg akh akk akn akr an- ana anc and ane ang anh ank ann anr ar- ara arc ard are arg arh ark arn arr c-- caa cac cad cae cag cah cak can car cca ccc ccd cce ccg cch cck ccn ccr cda cdc cdd cde cdg cdh cdk cdn cdr ce- cea cec ced cee ceg ceh cek cen cer cga cgc cgd cge cgg cgh cgn cgr ch- cha chc chd che chg chh chk chn chr cka ckc ckd ckh cn- cna cnc cnd cne cng cnh cnn cnr cra crc crd cre crg crh crk crn crr daa dac dad dae dag dah dak dan dar dca dcc dcd dce dcg dck dcn dcr dda ddc ddd dde ddg ddh ddk ddn ddr de- dea dec ded dee deg deh dek den der dga dgc dgd dge dgg dgh dgk dgn dgr dh- dha dhc dhd dhe dhh dhk dhr dka dkc dke dkg dkk dkr dna dnc dnd dne dng dnh dnk dnn dnr dra drc drd dre drg drk drn drr eaa eac ead eae eag eah eak ean ear ec- eca ecc ecd ece ecg ech eck ecn ecr ed- eda edc edd ede edg edh edk edn edr eea eec eed eee eeg eek een eer ega egc egd ege egg egh egn egr eha ehc ehd ehe ehg ehh ehn ehr eka ekc ekd eke ekg ekh ekr en- ena enc end ene eng enh enk enn enr era erc erd ere erg erh erk ern err g-d gaa gac gad gae gag gah gak gan gar gca gcc gcd gce gcg gch gck gcn gcr gda gdc gdd gde gdh gdk gdn gdr ge- gea gec ged gee geg geh gek gen ger gga ggc ggd ggg ggh ggn ggr gha ghc ghd ghe ghg ghh ghn ghr gka gkd gkh gkn gna gnc gnd gne gnn gnr gra grc grd gre grg grh grk grn grr haa hac had hae hag hah hak han har hca hcc hcd hce hcg hch hck hcn hcr hda hdc hdd hde hdg hdh hdk hdn hdr he- hea hec hed hee heg heh hek hen her hga hgc hge hgg hgh hgk hgn hgr hha hhc hhd hhe hhg hhh hhk hhn hhr hka hkd hkg hkh hkk hkn hkr hna hnc hnd hne hng hnh hnk hnn hr- hra hrc hrd hre hrg hrh hrk hrn hrr ka- kaa kac kad kae kag kah kak kan kar kca kcc kcd kce kcg kch kck kcn kcr kda kdc kde kdg kdh kdk kdr ke- kea kec ked kee keg keh kek ken ker kga kgc kgd kgh kha khe khh khk khn khr kkc kke kkh kkk kkn kkr kn- kna knc knd kne kng knk knn knr kra krc krd krg krk krn krr naa nac nad nae nag nah nak nan nar nca ncc ncd nce ncg nch nck ncn ncr nda ndc ndd nde ndg ndh ndk ndn ndr ne- nea nec ned nee neg neh nek nen ner nga ngc ngd nge ngg ngh ngk ngn nha nhc nhd nhe nhg nhh nhk nhn nhr nka nkc nke nkk nkn nkr nna nnc nne nng nnh nnk nnn nra nrc nrd nre nrg nrk nrn nrr ra- raa rac rad rae rag rah rak ran rar rca rcc rcd rce rcg rch rcn rcr rda rdc rdd rde rdg rdh rdn rdr re- rea rec red ree reg reh rek ren rer rga rgc rgd rge rgg rgh rgk rgn rgr rh- rha rhc rhd rhe rhg rhh rhn rhr rkc rke rkg rkk rna rnc rnd rng rnh rnn rnr rra rrc rrd rrg rrh rrk rrn rrr