-th a-a a-b a-c a-t aaa aab aac aad aah aan aao aar aas aat ab- aba abb abc abd abh abn abo abr abs abt ac- aca acb acc acd ach acn aco acr acs act ad- ada adb adc add adh adn ado adr ads adt aha ahb ahc ahd ahh ahn aho ahr ahs aht an- ana anb anc and anh ann ano anr ans ant aoa aob aoc aod aoh aon aoo aor aos aot ar- ara arb arc ard arh arn aro arr ars art as- asa asb asc asd ash asn aso asr ass ast at- ata atb atc atd ath atn ato atr ats att baa bab bac bad bah ban bao bar bas bat bba bbb bbc bbd bbh bbn bbo bbr bbs bbt bca bcb bcc bcd bch bcn bco bcr bcs bct bda bdb bdc bdd bdh bdo bdr bds bdt bha bhb bhc bhd bhh bho bhr bhs bht bna bnb bnc bnd bnn bno bnr bns bnt boa bob boc bod boh bon boo bor bos bot bra brb brd brh brn bro brr brs brt bsa bsb bsc bsd bsh bsn bso bsr bss bst bta btb btc btd bth btn bto btr bts btt c-- caa cab cac cad cah can cao car cas cat cba cbb cbc cbd cbh cbn cbo cbr cbs cbt cca ccb ccc ccd cch ccn cco ccr ccs cct cda cdb cdc cdd cdh cdn cdo cdr cds cdt ch- cha chb chc chd chh chn cho chr chs cht cn- cna cnb cnc cnd cnh cnn cno cnr cns cnt co- coa cob coc cod coh con coo cor cos cot cra crb crc crd crh crn cro crr crs crt csa csb csc csd csh csn cso csr css cst cta ctb ctc ctd cth ctn cto ctr cts ctt daa dab dac dad dah dan dao dar das dat dba dbb dbc dbd dbh dbn dbo dbr dbs dbt dca dcb dcc dcd dcn dco dcr dcs dct dda ddb ddc ddd ddh ddn ddo ddr dds ddt dh- dha dhb dhc dhd dhh dho dhr dhs dht dna dnb dnc dnd dnh dnn dno dnr dns dnt doa dob doc dod doh don doo dor dos dot dra drb drc drd drn dro drr drs drt dsa dsb dsc dsd dsh dsn dso dsr dss dst dta dtb dtc dtd dth dtn dto dtr dts dtt haa hab hac had hah han hao har has hat hba hbb hbc hbd hbh hbn hbo hbr hbs hbt hca hcb hcc hcd hch hcn hco hcr hcs hct hda hdb hdc hdd hdh hdn hdo hdr hds hdt hha hhb hhc hhd hhh hhn hho hhr hhs hht hna hnb hnc hnd hnh hnn hno hns hnt hoa hob hoc hod hoh hon hoo hor hos hot hr- hra hrb hrc hrd hrh hrn hro hrr hrs hrt hsa hsb hsc hsd hsh hsn hsr hss hst hta htb htc htd hth htn hto htr hts htt naa nab nac nad nah nan nao nar nas nat nba nbb nbc nbd nbn nbo nbr nbs nbt nca ncb ncc ncd nch ncn nco ncr ncs nct nda ndb ndc ndd ndh ndn ndo ndr nds ndt nha nhb nhc nhd nhh nhn nhr nhs nht nna nnb nnc nnh nnn nno nns nnt no- noa nob noc nod noh non noo nor nos not nra nrb nrc nrd nrn nro nrr nrs nrt nsa nsb nsc nsd nsh nsn nso nsr nss nst nta ntb ntc ntd nth ntn nto ntr nts ntt oaa oab oac oad oah oan oao oar oas oat ob- oba obb obc obd obh obn obo obr obs obt oc- oca ocb occ ocd och ocn oco ocr ocs oct oda odb odc odd odh odn odo odr ods odt oha ohc ohd ohh ohn oho ohr ohs oht on- ona onb onc ond onh onn ono onr ons ont oo- ooa oob ooc ood ooh oon ooo oor oos oot or- ora orb orc ord orh orn oro orr ors ort os- osa osb osc osd osh osn oso osr oss ost ot- ota otb otc otd oth otn oto otr ots ott ra- raa rab rac rad rah ran rao rar ras rat rba rbb rbc rbd rbh rbn rbo rbr rbs rbt rca rcb rcc rcd rch rcn rco rcr rcs rct rda rdb rdc rdd rdh rdn rdo rdr rds rdt rh- rha rhb rhc rhd rhh rhn rho rhr rhs rht rna rnb rnc rnd rnh rnn rno rnr rns rnt roa rob roc rod roh ron roo ror ros rot rra rrb rrc rrd rrh rrn rrr rrs rrt rsa rsb rsc rsd rsh rsn rso rsr rss rst rta rtb rtc rtd rtn rto rtr rts rtt saa sab sac sad sah san sao sar sas sat sba sbb sbc sbd sbh sbn sbo sbr sbs sbt sca scb scc scd sch scn sco scr scs sct sda sdb sdc sdd sdh sdn sdo sdr sds sdt sh- sha shb shc shd shh shn sho shr shs sht sna snb snc snd snn sno snr sns snt soa sob soc sod soh son soo sor sos sot sr- sra srb src srd srh srn sro srr srs srt ss- ssa ssb ssc ssd ssh ssn sso ssr sss sst sta stb stc std sth stn sto str sts stt taa tab tac tad tah tan tao tar tas tat tba tbb tbc tbd tbh tbn tbo tbr tbs tbt tca tcb tcc tcd tch tcn tco tcr tcs tct tda tdb tdc tdd tdh tdn tdo tdr tds tdt th- tha thb thc thd thh thn tho thr ths tht tna tnb tnc tnd tnh tnn tno tnr tns tnt to- toa tob toc tod toh ton too tor tos tot tra trb trc trd trh trn tro trr trs trt tsa tsb tsc tsd tsh