a-a a-b a-i aaa aab aaf aah aai aan aas ab- aba abb abf abh abi abn abs af- afa afb aff afh afi afn afs aha ahb ahf ahh ahi ahn ahs ai- aia aib aif aih aii ain ais an- ana anb anf anh ani ann ans as- asa asb asf ash asi asn ass baa bab baf bah bai ban bas bba bbb bbf bbh bbi bbn bbs bfa bfb bff bfh bfi bfn bfs bha bhb bhf bhh bhi bhs bi- bia bib bif bih bii bin bis bna bnb bnf bni bnn bns bsa bsb bsf bsh bsi bsn bss faa fab faf fah fai fan fas fba fbb fbf fbh fbi fbn fbs ffa fff ffh ffi ffn ffs fha fhb fhf fhh fhi fhn fhs fia fib fif fih fii fin fis fna fnb fnf fnh fni fnn fns fsa fsb fsf fsh fsi fsn fss h-i haa hab haf hah hai han has hba hbb hbf hbh hbi hbn hbs hfa hfb hff hfh hfi hfn hfs hha hhb hhf hhh hhi hhn hhs hia hib hif hih hii hin his hna hnb hnf hnh hnn hns hsa hsb hsf hsh hsi hsn hss i-f ia- iaa iab iaf iah iai ian ias iba ibb ibf ibh ibi ibn ibs ifa ifb iff ifi ifn ifs iha ihb ihf ihh ihi ihn ihs iia iib iif iih iii iin iis in- ina inb inf inh ini inn ins is- isa isb isf ish isi isn iss n-i naa nab naf nah nai nan nas nba nbb nbf nbi nbn nbs nfa nfb nff nfi nfn nfs nha nhb nhf nhh nhi nhn nhs nia nib nif nih nii nin nis nna nnb nnf nnh nni nnn nns nsa nsb nsf nsh nsi nsn nss saa sab saf sah sai san sas sba sbb sbf sbh sbi sbn sbs sfa sfb sff sfh sfi sfn sfs sh- sha shb shf shh shi shn shs sia sib sif sih sii sin sis sna snb snf sni snn sns ss- ssa ssb ssf ssh ssi ssn sss