-ic a-a a-b a-c a-i aaa aab aac aae aag aah aai aas ab- aba abb abc abe abg abh abi abs ac- aca acb acc ace acg ach aci acs aea aeb aec aee aeg aeh aei aes ag- aga agb agc age agg agh agi ags aha ahb ahc ahe ahg ahh ahi ahs ai- aia aib aic aie aig aih aii ais as- asa asb asc ase asg ash asi ass baa bab bac bae bag bah bai bas bba bbb bbc bbe bbg bbh bbi bbs bca bcb bcc bce bcg bch bci bcs be- bea beb bec bee beg beh bei bes bga bgb bgc bge bgg bgh bgi bgs bha bhb bhc bhe bhg bhh bhi bhs bi- bia bib bic bie big bih bii bis bsa bsb bsc bse bsg bsh bsi bss c-- caa cab cac cae cag cah cai cas cba cbb cbc cbe cbg cbh cbi cbs cca ccb ccc cce ccg cch cci ccs ce- cea ceb cec cee ceg ceh cei ces cga cgb cgc cge cgg cgh cgi cgs ch- cha chb chc che chg chh chi chs ci- cia cib cic cie cig cih cii cis csa csb csc cse csg csh csi css eaa eab eac eae eag eah eai eas eba ebb ebc ebe ebg ebh ebi ebs ec- eca ecb ecc ece ecg ech eci ecs eea eeb eec eee eeg ees ega egb egc ege egg egh egi egs eha ehb ehc ehe ehg ehh ehi ehs eia eib eic eie eig eii eis es- esa esb esc ese esg esh esi ess gaa gab gac gae gag gah gai gas gba gbc gbe gbg gbh gbi gbs gca gcb gcc gce gcg gch gci gcs ge- gea geb gec gee geg geh gei ges gga ggb ggc ggg ggh ggi ggs gha ghb ghc ghe ghg ghh ghi ghs gia gib gic gie gig gih gii gis gsa gsb gsc gse gsg gsi gss h-i haa hab hac hae hag hah hai has hba hbb hbc hbe hbg hbh hbi hbs hca hcb hcc hce hcg hch hci hcs he- hea heb hec hee heg heh hei hes hga hgb hgc hge hgg hgh hgi hgs hha hhb hhc hhe hhg hhh hhi hhs hia hib hic hie hig hih hii his hsa hsb hsc hse hsg hsh hsi hss ia- iaa iab iac iae iag iah iai ias iba ibb ibc ibe ibg ibh ibi ibs ica icb icc ice icg ich ici ics ie- iea iec iee ieg iei ies iga igb igc ige igg igh igi igs iha ihb ihc ihe ihg ihh ihi ihs iia iib iic iie iih iii iis is- isa isb isc ise isg ish isi iss saa sab sac sae sag sah sai sas sba sbb sbc sbe sbg sbh sbi sbs sca scb scc sce scg sch sci scs se- sea seb sec see seg seh sei ses sga sgb sgc sge sgg sgh sgi sgs sh- sha shb shc she shg shh shi shs sia sib sic sie sig sih sii sis ss- ssa ssb ssc sse ssg ssh ssi sss