a-a a-b a-i aaa aab aag aah aai aan aao aas ab- aba abb abg abh abi abn abo abs ag- aga agb agg agh agi agn ago ags aha ahb ahg ahh ahi ahn aho ahs ai- aia aib aig aih aii ain aio ais an- ana anb ang anh ani ann ano ans aoa aob aog aoh aoi aon aoo aos as- asa asb asg ash asi asn aso ass baa bab bag bah bai ban bao bas bba bbb bbg bbh bbi bbn bbo bbs bga bgb bgg bgh bgi bgn bgo bgs bha bhb bhg bhh bhi bho bhs bi- bia bib big bih bii bin bio bis bna bnb bng bni bnn bno bns boa bob bog boh boi bon boo bos bsa bsb bsg bsh bsi bsn bso bss gaa gab gag gah gai gan gao gas gba gbg gbh gbi gbn gbo gbs gga ggb ggg ggh ggi ggn ggo ggs gha ghb ghg ghh ghi ghn gho ghs gia gib gig gih gii gin gio gis gna gnb gni gnn gno gns goa gob gog goh goi gon goo gos gsa gsb gsg gsi gsn gso gss h-i haa hab hag hah hai han hao has hba hbb hbg hbh hbi hbn hbo hbs hga hgb hgg hgh hgi hgn hgo hgs hha hhb hhg hhh hhi hhn hho hhs hia hib hig hih hii hin hio his hna hnb hng hnh hnn hno hns hoa hob hog hoh hoi hon hoo hos hsa hsb hsg hsh hsi hsn hss ia- iaa iab iag iah iai ian iao ias iba ibb ibg ibh ibi ibn ibo ibs iga igb igg igh igi ign igo igs iha ihb ihg ihh ihi ihn iho ihs iia iib iih iii iin iio iis in- ina inb ing inh ini inn ino ins io- ioa iob iog ioh ioi ion ioo ios is- isa isb isg ish isi isn iso iss n-i naa nab nag nah nai nan nao nas nba nbb nbg nbi nbn nbo nbs nga ngb ngg ngh ngi ngn ngo ngs nha nhb nhg nhh nhi nhn nhs nia nib nig nih nii nin nio nis nna nnb nng nnh nni nnn nno nns no- noa nob nog noh noi non noo nos nsa nsb nsg nsh nsi nsn nso nss o-i oaa oab oag oah oai oan oao oas ob- oba obb obg obh obi obn obo obs oga ogg ogh ogi ogn ogo ogs oha ohg ohh ohi ohn oho ohs oia oib oii oin oio ois on- ona onb ong onh oni onn ono ons oo- ooa oob oog ooh ooi oon ooo oos os- osa osb osg osh osi osn oso oss saa sab sag sah sai san sao sas sba sbb sbg sbh sbi sbn sbo sbs sga sgb sgg sgh sgi sgn sgo sgs sh- sha shb shg shh shi shn sho shs sia sib sig sih sii sin sio sis sna snb sng sni snn sno sns soa sob sog soh soi son soo sos ss- ssa ssb ssg ssh ssi ssn sso sss