-ic a-a a-b a-c a-i aaa aab aac aag aah aai aan aar aas ab- aba abb abc abg abh abi abn abr abs ac- aca acb acc acg ach aci acn acr acs ag- aga agb agc agg agh agi agn agr ags aha ahb ahc ahg ahh ahi ahn ahr ahs ai- aia aib aic aig aih aii ain air ais an- ana anb anc ang anh ani ann anr ans ar- ara arb arc arg arh ari arn arr ars as- asa asb asc asg ash asi asn asr ass baa bab bac bag bah bai ban bar bas bba bbb bbc bbg bbh bbi bbn bbr bbs bca bcb bcc bcg bch bci bcn bcr bcs bga bgb bgc bgg bgh bgi bgn bgr bgs bha bhb bhc bhg bhh bhi bhr bhs bi- bia bib bic big bih bii bin bir bis bna bnb bnc bng bni bnn bnr bns bra brb brg brh bri brn brr brs bsa bsb bsc bsg bsh bsi bsn bsr bss c-- caa cab cac cag cah cai can car cas cba cbb cbc cbg cbh cbi cbn cbr cbs cca ccb ccc ccg cch cci ccn ccr ccs cga cgb cgc cgg cgh cgi cgn cgr cgs ch- cha chb chc chg chh chi chn chr chs ci- cia cib cic cig cih cii cin cir cis cn- cna cnb cnc cng cnh cni cnn cnr cns cra crb crc crg crh cri crn crr crs csa csb csc csg csh csi csn csr css gaa gab gac gag gah gai gan gar gas gba gbc gbg gbh gbi gbn gbr gbs gca gcb gcc gcg gch gci gcn gcr gcs gga ggb ggc ggg ggh ggi ggn ggr ggs gha ghb ghc ghg ghh ghi ghn ghr ghs gia gib gic gig gih gii gin gir gis gna gnb gnc gni gnn gnr gns gra grb grc grg grh gri grn grr grs gsa gsb gsc gsg gsi gsn gsr gss h-i haa hab hac hag hah hai han har has hba hbb hbc hbg hbh hbi hbn hbr hbs hca hcb hcc hcg hch hci hcn hcr hcs hga hgb hgc hgg hgh hgi hgn hgr hgs hha hhb hhc hhg hhh hhi hhn hhr hhs hia hib hic hig hih hii hin hir his hna hnb hnc hng hnh hnn hns hr- hra hrb hrc hrg hrh hri hrn hrr hrs hsa hsb hsc hsg hsh hsi hsn hsr hss ia- iaa iab iac iag iah iai ian iar ias iba ibb ibc ibg ibh ibi ibn ibr ibs ica icb icc icg ich ici icn icr ics iga igb igc igg igh igi ign igr igs iha ihb ihc ihg ihh ihi ihn ihr ihs iia iib iic iih iii iin iir iis in- ina inb inc ing inh ini inn inr ins ir- ira irb irc irg iri irn irr irs is- isa isb isc isg ish isi isn isr iss n-i naa nab nac nag nah nai nan nar nas nba nbb nbc nbg nbi nbn nbr nbs nca ncb ncc ncg nch nci ncn ncr ncs nga ngb ngc ngg ngh ngi ngn ngs nha nhb nhc nhg nhh nhi nhn nhr nhs nia nib nic nig nih nii nin nir nis nna nnb nnc nng nnh nni nnn nns nra nrb nrc nrg nri nrn nrr nrs nsa nsb nsc nsg nsh nsi nsn nsr nss ra- raa rab rac rag rah rai ran rar ras rba rbb rbc rbg rbh rbi rbn rbr rbs rca rcb rcc rcg rch rci rcn rcr rcs rga rgb rgc rgg rgh rgi rgn rgr rgs rh- rha rhb rhc rhg rhh rhi rhn rhr rhs ria rib ric rig rih rii rin rir ris rna rnb rnc rng rnh rni rnn rnr rns rra rrb rrc rrg rrh rri rrn rrr rrs rsa rsb rsc rsg rsh rsi rsn rsr rss saa sab sac sag sah sai san sar sas sba sbb sbc sbg sbh sbi sbn sbr sbs sca scb scc scg sch sci scn scr scs sga sgb sgc sgg sgh sgi sgn sgr sgs sh- sha shb shc shg shh shi shn shr shs sia sib sic sig sih sii sin sir sis sna snb snc sng sni snn snr sns sr- sra srb src srg srh sri srn srr srs ss- ssa ssb ssc ssg ssh ssi ssn ssr sss