a-a a-b a-i aaa aab aag aah aai aan aar aas ab- aba abb abg abh abi abn abr abs ag- aga agb agg agh agi agn agr ags aha ahb ahg ahh ahi ahn ahr ahs ai- aia aib aig aih aii ain air ais an- ana anb ang anh ani ann anr ans ar- ara arb arg arh ari arn arr ars as- asa asb asg ash asi asn asr ass baa bab bag bah bai ban bar bas bba bbb bbg bbh bbi bbn bbr bbs bga bgb bgg bgh bgi bgn bgr bgs bha bhb bhg bhh bhi bhr bhs bi- bia bib big bih bii bin bir bis bna bnb bng bni bnn bnr bns bra brb brg brh bri brn brr brs bsa bsb bsg bsh bsi bsn bsr bss gaa gab gag gah gai gan gar gas gba gbg gbh gbi gbn gbr gbs gga ggb ggg ggh ggi ggn ggr ggs gha ghb ghg ghh ghi ghn ghr ghs gia gib gig gih gii gin gir gis gna gnb gni gnn gnr gns gra grb grg grh gri grn grr grs gsa gsb gsg gsi gsn gsr gss h-i haa hab hag hah hai han har has hba hbb hbg hbh hbi hbn hbr hbs hga hgb hgg hgh hgi hgn hgr hgs hha hhb hhg hhh hhi hhn hhr hhs hia hib hig hih hii hin hir his hna hnb hng hnh hnn hns hr- hra hrb hrg hrh hri hrn hrr hrs hsa hsb hsg hsh hsi hsn hsr hss ia- iaa iab iag iah iai ian iar ias iba ibb ibg ibh ibi ibn ibr ibs iga igb igg igh igi ign igr igs iha ihb ihg ihh ihi ihn ihr ihs iia iib iih iii iin iir iis in- ina inb ing inh ini inn inr ins ir- ira irb irg iri irn irr irs is- isa isb isg ish isi isn isr iss n-i naa nab nag nah nai nan nar nas nba nbb nbg nbi nbn nbr nbs nga ngb ngg ngh ngi ngn ngs nha nhb nhg nhh nhi nhn nhr nhs nia nib nig nih nii nin nir nis nna nnb nng nnh nni nnn nns nra nrb nrg nri nrn nrr nrs nsa nsb nsg nsh nsi nsn nsr nss ra- raa rab rag rah rai ran rar ras rba rbb rbg rbh rbi rbn rbr rbs rga rgb rgg rgh rgi rgn rgr rgs rh- rha rhb rhg rhh rhi rhn rhr rhs ria rib rig rih rii rin rir ris rna rnb rng rnh rni rnn rnr rns rra rrb rrg rrh rri rrn rrr rrs rsa rsb rsg rsh rsi rsn rsr rss saa sab sag sah sai san sar sas sba sbb sbg sbh sbi sbn sbr sbs sga sgb sgg sgh sgi sgn sgr sgs sh- sha shb shg shh shi shn shr shs sia sib sig sih sii sin sir sis sna snb sng sni snn snr sns sr- sra srb srg srh sri srn srr srs ss- ssa ssb ssg ssh ssi ssn ssr sss