a-a a-c aaa aac aad aag aan aao aar aau ac- aca acc acd acg acn aco acr acu ad- ada adc add adg adn ado adr adu ag- aga agc agd agg agn ago agr agu an- ana anc and ang ann ano anr anu aoa aoc aod aog aon aoo aor aou ar- ara arc ard arg arn aro arr aru au- aua auc aud aug aun auo aur c-- caa cac cad cag can cao car cau cca ccc ccd ccg ccn cco ccr ccu cda cdc cdd cdg cdn cdo cdr cdu cga cgc cgd cgg cgn cgo cgr cgu cn- cna cnc cnd cng cnn cno cnr cnu co- coa coc cod cog con coo cor cou cra crc crd crg crn cro crr cru cua cuc cud cug cun cuo cur cuu daa dac dad dag dan dao dar dau dca dcc dcd dcg dcn dco dcr dcu dda ddc ddd ddg ddn ddo ddr ddu dga dgc dgd dgg dgn dgr dgu dna dnc dnd dng dnn dno dnr doa doc dod dog don doo dor dou dra drc drd drg drn dro drr dru dua duc dud dug dun duo dur g-d gaa gac gad gag gan gao gar gau gca gcc gcd gcg gcn gco gcr gcu gda gdc gdd gdn gdo gdr gdu gga ggc ggd ggg ggn ggo ggr ggu gna gnc gnd gnn gno gnr gnu goa goc god gog gon goo gor gou gra grc grd grg grn gro grr gru gu- gua guc gud gug gun guo gur guu naa nac nad nag nan nao nar nau nca ncc ncd ncg ncn nco ncr ncu nda ndc ndd ndg ndn ndo ndr ndu nga ngc ngd ngg ngn ngo ngu nna nnc nng nnn nno nnu no- noa noc nod nog non noo nor nou nra nrc nrd nrg nrn nro nrr nru nua nuc nud nug nun nuo nur nuu oaa oac oad oag oan oao oar oau oc- oca occ ocd ocg ocn oco ocr ocu oda odc odd odg odn odo odr odu oga ogc ogd ogg ogn ogo on- ona onc ond ong onn ono onr onu oo- ooa ooc ood oog oon ooo oor or- ora orc ord org orn oro orr oru ou- oua ouc oud oun ouo our ra- raa rac rad rag ran rao rar rau rca rcc rcd rcg rcn rco rcr rcu rda rdc rdd rdg rdn rdo rdr rdu rga rgc rgd rgg rgn rgo rgr rna rnc rnd rng rnn rno rnr rnu roa roc rod rog ron roo ror rou rra rrc rrd rrg rrn rrr rru rua ruc rud rug run ruo rur ruu ua- uaa uac uad uag uan uao uar uau uca ucc ucd ucg ucn uco ucr ucu uda udc udd udg udn udo udr udu uga ugc ugg ugn ugo ugr ugu un- una unc und ung unn uno unr unu uoa uoc uod uog uon uoo uor ur- ura urc urd urg urn uro urr uru uua uuc uug uun uur uuu