-th a-a a-b a-c a-t aaa aab aac aad aah aan aao aar aas aat aau ab- aba abb abc abd abh abn abo abr abs abt abu ac- aca acb acc acd ach acn aco acr acs act acu ad- ada adb adc add adh adn ado adr ads adt adu aha ahb ahc ahd ahh ahn aho ahr ahs aht ahu an- ana anb anc and anh ann ano anr ans ant anu aoa aob aoc aod aoh aon aoo aor aos aot aou ar- ara arb arc ard arh arn aro arr ars art aru as- asa asb asc asd ash asn aso asr ass ast asu at- ata atb atc atd ath atn ato atr ats att atu au- aua aub auc aud auh aun auo aur aus aut b-u baa bab bac bad bah ban bao bar bas bat bau bba bbb bbc bbd bbh bbn bbo bbr bbs bbt bbu bca bcb bcc bcd bch bcn bco bcr bcs bct bcu bda bdb bdc bdd bdh bdo bdr bds bdt bdu bha bhb bhc bhd bhh bho bhr bhs bht bhu bna bnb bnc bnd bnn bno bnr bns bnt bnu boa bob boc bod boh bon boo bor bos bot bou bra brb brd brh brn bro brr brs brt bru bsa bsb bsc bsd bsh bsn bso bsr bss bst bsu bta btb btc btd bth btn bto btr bts btt btu bua bub buc bud buh bun buo bur bus but buu c-- caa cab cac cad cah can cao car cas cat cau cba cbb cbc cbd cbh cbn cbo cbr cbs cbt cbu cca ccb ccc ccd cch ccn cco ccr ccs cct ccu cda cdb cdc cdd cdh cdn cdo cdr cds cdt cdu ch- cha chb chc chd chh chn cho chr chs cht chu cn- cna cnb cnc cnd cnh cnn cno cnr cns cnt cnu co- coa cob coc cod coh con coo cor cos cot cou cra crb crc crd crh crn cro crr crs crt cru csa csb csc csd csh csn cso csr css cst csu cta ctb ctc ctd cth ctn cto ctr cts ctt ctu cua cub cuc cud cuh cun cuo cur cus cut cuu daa dab dac dad dah dan dao dar das dat dau dba dbb dbc dbd dbh dbn dbo dbr dbs dbt dbu dca dcb dcc dcd dcn dco dcr dcs dct dcu dda ddb ddc ddd ddh ddn ddo ddr dds ddt ddu dh- dha dhb dhc dhd dhh dho dhr dhs dht dhu dna dnb dnc dnd dnh dnn dno dnr dns dnt doa dob doc dod doh don doo dor dos dot dou dra drb drc drd drn dro drr drs drt dru dsa dsb dsc dsd dsh dsn dso dsr dss dst dsu dta dtb dtc dtd dth dtn dto dtr dts dtt dtu dua dub duc dud duh dun duo dur dus dut haa hab hac had hah han hao har has hat hau hba hbb hbc hbd hbh hbn hbo hbr hbs hbt hbu hca hcb hcc hcd hch hcn hco hcr hcs hct hda hdb hdc hdd hdh hdn hdo hdr hds hdt hdu hha hhb hhc hhd hhh hhn hho hhr hhs hht hhu hna hnb hnc hnd hnh hnn hno hns hnt hnu hoa hob hoc hod hoh hon hoo hor hos hot hou hr- hra hrb hrc hrd hrh hrn hro hrr hrs hrt hru hsa hsb hsc hsd hsh hsn hsr hss hst hsu hta htb htc htd hth htn hto htr hts htt hua hub huc hud huh hun huo hur hus hut huu naa nab nac nad nah nan nao nar nas nat nau nba nbb nbc nbd nbn nbo nbr nbs nbt nbu nca ncb ncc ncd nch ncn nco ncr ncs nct ncu nda ndb ndc ndd ndh ndn ndo ndr nds ndt ndu nha nhb nhc nhd nhh nhn nhr nhs nht nhu nna nnb nnc nnh nnn nno nns nnt nnu no- noa nob noc nod noh non noo nor nos not nou nra nrb nrc nrd nrn nro nrr nrs nrt nru nsa nsb nsc nsd nsh nsn nso nsr nss nst nsu nta ntb ntc ntd nth ntn nto ntr nts ntt ntu nua nub nuc nud nuh nun nuo nur nus nut nuu oaa oab oac oad oah oan oao oar oas oat oau ob- oba obb obc obd obh obn obo obr obs obt obu oc- oca ocb occ ocd och ocn oco ocr ocs oct ocu oda odb odc odd odh odn odo odr ods odt odu oha ohc ohd ohh ohn oho ohr ohs oht ohu on- ona onb onc ond onh onn ono onr ons ont onu oo- ooa oob ooc ood ooh oon ooo oor oos oot or- ora orb orc ord orh orn oro orr ors ort oru os- osa osb osc osd osh osn oso osr oss ost osu ot- ota otb otc otd oth otn oto otr ots ott otu ou- oua ouc oud ouh oun ouo our ous out ra- raa rab rac rad rah ran rao rar ras rat rau rba rbb rbc rbd rbh rbn rbo rbr rbs rbt rbu rca rcb rcc rcd rch rcn rco rcr rcs rct rcu rda rdb rdc rdd rdh rdn rdo rdr rds rdt rdu rh- rha rhb rhc rhd rhh rhn rho rhr rhs rht rhu rna rnb rnc rnd rnh rnn rno rnr rns rnt rnu roa rob roc rod roh ron roo ror ros rot rou rra rrb rrc rrd rrh rrn rrr rrs rrt rru rsa rsb rsc rsd rsh rsn rso rsr rss rst rsu rta rtb rtc rtd rtn rto rtr rts rtt rtu rua rub ruc rud ruh run ruo rur rus rut ruu saa sab sac sad sah san sao sar sas sat sau sba sbb sbc sbd sbh sbn sbo sbr sbs sbt sbu sca scb scc scd