a-a a-b a-c a-t aaa aab aac aad aag aan aao aar aas aat aau ab- aba abb abc abd abg abn abo abr abs abt abu ac- aca acb acc acd acg acn aco acr acs act acu ad- ada adb adc add adg adn ado adr ads adt adu ag- aga agb agc agd agg agn ago agr ags agt agu an- ana anb anc and ang ann ano anr ans ant anu aoa aob aoc aod aog aon aoo aor aos aot aou ar- ara arb arc ard arg arn aro arr ars art aru as- asa asb asc asd asg asn aso asr ass ast asu at- ata atb atc atd atg atn ato atr ats att atu au- aua aub auc aud aug aun auo aur aus aut b-u baa bab bac bad bag ban bao bar bas bat bau bba bbb bbc bbd bbg bbn bbo bbr bbs bbt bbu bca bcb bcc bcd bcg bcn bco bcr bcs bct bcu bda bdb bdc bdd bdg bdo bdr bds bdt bdu bga bgb bgc bgd bgg bgn bgo bgr bgs bgt bgu bna bnb bnc bnd bng bnn bno bnr bns bnt bnu boa bob boc bod bog bon boo bor bos bot bou bra brb brd brg brn bro brr brs brt bru bsa bsb bsc bsd bsg bsn bso bsr bss bst bsu bta btb btc btd btg btn bto btr bts btt btu bua bub buc bud bug bun buo bur bus but buu c-- caa cab cac cad cag can cao car cas cat cau cba cbb cbc cbd cbg cbn cbo cbr cbs cbt cbu cca ccb ccc ccd ccg ccn cco ccr ccs cct ccu cda cdb cdc cdd cdg cdn cdo cdr cds cdt cdu cga cgb cgc cgd cgg cgn cgo cgr cgs cgt cgu cn- cna cnb cnc cnd cng cnn cno cnr cns cnt cnu co- coa cob coc cod cog con coo cor cos cot cou cra crb crc crd crg crn cro crr crs crt cru csa csb csc csd csg csn cso csr css cst csu cta ctb ctc ctd ctg ctn cto ctr cts ctt ctu cua cub cuc cud cug cun cuo cur cus cut cuu daa dab dac dad dag dan dao dar das dat dau dba dbb dbc dbd dbg dbn dbo dbr dbs dbt dbu dca dcb dcc dcd dcg dcn dco dcr dcs dct dcu dda ddb ddc ddd ddg ddn ddo ddr dds ddt ddu dga dgc dgd dgg dgn dgr dgs dgt dgu dna dnb dnc dnd dng dnn dno dnr dns dnt doa dob doc dod dog don doo dor dos dot dou dra drb drc drd drg drn dro drr drs drt dru dsa dsb dsc dsd dsg dsn dso dsr dss dst dsu dta dtb dtc dtd dtg dtn dto dtr dts dtt dtu dua dub duc dud dug dun duo dur dus dut g-d gaa gab gac gad gag gan gao gar gas gat gau gba gbc gbd gbg gbn gbo gbr gbs gbt gbu gca gcb gcc gcd gcg gcn gco gcr gcs gct gcu gda gdb gdc gdd gdn gdo gdr gds gdt gdu gga ggb ggc ggd ggg ggn ggo ggr ggs ggt ggu gna gnb gnc gnd gnn gno gnr gns gnt gnu goa gob goc god gog gon goo gor gos got gou gra grb grc grd grg grn gro grr grs grt gru gsa gsb gsc gsd gsg gsn gso gsr gss gst gsu gta gtb gtc gtd gtg gtn gto gtr gts gtt gtu gu- gua gub guc gud gug gun guo gur gus gut guu naa nab nac nad nag nan nao nar nas nat nau nba nbb nbc nbd nbg nbn nbo nbr nbs nbt nbu nca ncb ncc ncd ncg ncn nco ncr ncs nct ncu nda ndb ndc ndd ndg ndn ndo ndr nds ndt ndu nga ngb ngc ngd ngg ngn ngo ngs ngt ngu nna nnb nnc nng nnn nno nns nnt nnu no- noa nob noc nod nog non noo nor nos not nou nra nrb nrc nrd nrg nrn nro nrr nrs nrt nru nsa nsb nsc nsd nsg nsn nso nsr nss nst nsu nta ntb ntc ntd ntg ntn nto ntr nts ntt ntu nua nub nuc nud nug nun nuo nur nus nut nuu oaa oab oac oad oag oan oao oar oas oat oau ob- oba obb obc obd obg obn obo obr obs obt obu oc- oca ocb occ ocd ocg ocn oco ocr ocs oct ocu oda odb odc odd odg odn odo odr ods odt odu oga ogc ogd ogg ogn ogo ogs ogt on- ona onb onc ond ong onn ono onr ons ont onu oo- ooa oob ooc ood oog oon ooo oor oos oot or- ora orb orc ord org orn oro orr ors ort oru os- osa osb osc osd osg osn oso osr oss ost osu ot- ota otb otc otd otg otn oto otr ots ott otu ou- oua ouc oud oun ouo our ous out ra- raa rab rac rad rag ran rao rar ras rat rau rba rbb rbc rbd rbg rbn rbo rbr rbs rbt rbu rca rcb rcc rcd rcg rcn rco rcr rcs rct rcu rda rdb rdc rdd rdg rdn rdo rdr rds rdt rdu rga rgb rgc rgd rgg rgn rgo rgr rgs rgt rna rnb rnc rnd rng rnn rno rnr rns rnt rnu roa rob roc rod rog ron roo ror ros rot rou rra rrb rrc rrd rrg rrn rrr rrs rrt rru rsa rsb rsc rsd rsg rsn rso rsr rss rst rsu rta rtb rtc rtd rtg rtn rto rtr rts rtt rtu rua rub ruc rud rug run ruo rur rus rut ruu saa sab sac sad sag san sao sar sas sat sau sba sbb sbc sbd sbg sbn sbo sbr sbs sbt sbu sca scb scc