a-a a-b a-i aaa aab aad aah aai aan aao aar aas ab- aba abb abd abh abi abn abo abr abs ad- ada adb add adh adi adn ado adr ads aha ahb ahd ahh ahi ahn aho ahr ahs ai- aia aib aid aih aii ain aio air ais an- ana anb and anh ani ann ano anr ans aoa aob aod aoh aoi aon aoo aor aos ar- ara arb ard arh ari arn aro arr ars as- asa asb asd ash asi asn aso asr ass baa bab bad bah bai ban bao bar bas bba bbb bbd bbh bbi bbn bbo bbr bbs bda bdb bdd bdh bdi bdo bdr bds bha bhb bhd bhh bhi bho bhr bhs bi- bia bib bid bih bii bin bio bir bis bna bnb bnd bni bnn bno bnr bns boa bob bod boh boi bon boo bor bos bra brb brd brh bri brn bro brr brs bsa bsb bsd bsh bsi bsn bso bsr bss daa dab dad dah dai dan dao dar das dba dbb dbd dbh dbi dbn dbo dbr dbs dda ddb ddd ddh ddi ddn ddo ddr dds dh- dha dhb dhd dhh dhi dho dhr dhs di- dia dib did dih dii din dio dir dis dna dnb dnd dnh dni dnn dno dnr dns doa dob dod doh doi don doo dor dos dra drb drd dri drn dro drr drs dsa dsb dsd dsh dsi dsn dso dsr dss h-i haa hab had hah hai han hao har has hba hbb hbd hbh hbi hbn hbo hbr hbs hda hdb hdd hdh hdi hdn hdo hdr hds hha hhb hhd hhh hhi hhn hho hhr hhs hia hib hid hih hii hin hio hir his hna hnb hnd hnh hnn hno hns hoa hob hod hoh hoi hon hoo hor hos hr- hra hrb hrd hrh hri hrn hro hrr hrs hsa hsb hsd hsh hsi hsn hsr hss i-d ia- iaa iab iad iah iai ian iao iar ias iba ibb ibd ibh ibi ibn ibo ibr ibs ida idb idd idh idi idn ido idr ids iha ihb ihd ihh ihi ihn iho ihr ihs iia iib iid iih iii iin iio iir iis in- ina inb ind inh ini inn ino inr ins io- ioa iob iod ioh ioi ion ioo ior ios ir- ira irb ird iri irn iro irr irs is- isa isb isd ish isi isn iso isr iss n-i naa nab nad nah nai nan nao nar nas nba nbb nbd nbi nbn nbo nbr nbs nda ndb ndd ndh ndi ndn ndo ndr nds nha nhb nhd nhh nhi nhn nhr nhs nia nib nid nih nii nin nio nir nis nna nnb nnh nni nnn nno nns no- noa nob nod noh noi non noo nor nos nra nrb nrd nri nrn nro nrr nrs nsa nsb nsd nsh nsi nsn nso nsr nss o-i oaa oab oad oah oai oan oao oar oas ob- oba obb obd obh obi obn obo obr obs oda odb odd odh odi odn odo odr ods oha ohd ohh ohi ohn oho ohr ohs oia oib oid oii oin oio oir ois on- ona onb ond onh oni onn ono onr ons oo- ooa oob ood ooh ooi oon ooo oor oos or- ora orb ord orh ori orn oro orr ors os- osa osb osd osh osi osn oso osr oss ra- raa rab rad rah rai ran rao rar ras rba rbb rbd rbh rbi rbn rbo rbr rbs rda rdb rdd rdh rdi rdn rdo rdr rds rh- rha rhb rhd rhh rhi rhn rho rhr rhs ria rib rid rih rii rin rio rir ris rna rnb rnd rnh rni rnn rno rnr rns roa rob rod roh roi ron roo ror ros rra rrb rrd rrh rri rrn rrr rrs rsa rsb rsd rsh rsi rsn rso rsr rss saa sab sad sah sai san sao sar sas sba sbb sbd sbh sbi sbn sbo sbr sbs sda sdb sdd sdh sdi sdn sdo sdr sds sh- sha shb shd shh shi shn sho shr shs sia sib sid sih sii sin sio sir sis sna snb snd sni snn sno snr sns soa sob sod soh soi son soo sor sos sr- sra srb srd srh sri srn sro srr srs ss- ssa ssb ssd ssh ssi ssn sso ssr sss