-er -ic a-a a-c a-i aaa aac aae aag aah aai aao aar aas ac- aca acc ace acg ach aci aco acr acs aea aec aee aeg aeh aei aeo aer aes ag- aga agc age agg agh agi ago agr ags aha ahc ahe ahg ahh ahi aho ahr ahs ai- aia aic aie aig aih aii aio air ais aoa aoc aoe aog aoh aoi aoo aor aos ar- ara arc are arg arh ari aro arr ars as- asa asc ase asg ash asi aso asr ass c-- caa cac cae cag cah cai cao car cas cca ccc cce ccg cch cci cco ccr ccs ce- cea cec cee ceg ceh cei ceo cer ces cga cgc cge cgg cgh cgi cgo cgr cgs ch- cha chc che chg chh chi cho chr chs ci- cia cic cie cig cih cii cio cir cis co- coa coc coe cog coh coi coo cor cos cra crc cre crg crh cri cro crr crs csa csc cse csg csh csi cso csr css eaa eac eae eag eah eai eao ear eas ec- eca ecc ece ecg ech eci eco ecr ecs eea eec eee eeg eeo eer ees ega egc ege egg egh egi ego egr egs eha ehc ehe ehg ehh ehi eho ehr ehs eia eic eie eig eii eio eir eis eo- eoa eoc eoe eog eoh eoi eoo eor eos era erc ere erg erh eri ero err ers es- esa esc ese esg esh esi eso esr ess gaa gac gae gag gah gai gao gar gas gca gcc gce gcg gch gci gco gcr gcs ge- gea gec gee geg geh gei geo ger ges gga ggc ggg ggh ggi ggo ggr ggs gha ghc ghe ghg ghh ghi gho ghr ghs gia gic gie gig gih gii gio gir gis goa goc goe gog goh goi goo gor gos gra grc gre grg grh gri gro grr grs gsa gsc gse gsg gsi gso gsr gss h-i haa hac hae hag hah hai hao har has hca hcc hce hcg hch hci hco hcr hcs he- hea hec hee heg heh hei heo her hes hga hgc hge hgg hgh hgi hgo hgr hgs hha hhc hhe hhg hhh hhi hho hhr hhs hia hic hie hig hih hii hio hir his hoa hoc hoe hog hoh hoi hoo hor hos hr- hra hrc hre hrg hrh hri hro hrr hrs hsa hsc hse hsg hsh hsi hsr hss ia- iaa iac iae iag iah iai iao iar ias ica icc ice icg ich ici ico icr ics ie- iea iec iee ieg iei ier ies iga igc ige igg igh igi igo igr igs iha ihc ihe ihg ihh ihi iho ihr ihs iia iic iie iih iii iio iir iis io- ioa ioc ioe iog ioh ioi ioo ior ios ir- ira irc ire irg iri iro irr irs is- isa isc ise isg ish isi iso isr iss o-i oaa oac oae oag oah oai oao oar oas oc- oca occ ocg och oci oco ocr ocs oea oec oee oeg oeh oei oeo oer oes oga ogc oge ogg ogh ogi ogo ogs oha ohc ohe ohg ohh ohi oho ohr ohs oia oic oie oii oio oir ois oo- ooa ooc oog ooh ooi ooo oor oos or- ora orc ore org orh ori oro orr ors os- osa osc ose osg osh osi oso osr oss ra- raa rac rae rag rah rai rao rar ras rca rcc rce rcg rch rci rco rcr rcs re- rea rec ree reg reh rei reo rer res rga rgc rge rgg rgh rgi rgo rgr rgs rh- rha rhc rhe rhg rhh rhi rho rhr rhs ria ric rie rig rih rii rio rir ris roa roc roe rog roh roi roo ror ros rra rrc rrg rrh rri rrr rrs rsa rsc rse rsg rsh rsi rso rsr rss saa sac sae sag sah sai sao sar sas sca scc sce scg sch sci sco scr scs se- sea sec see seg seh sei seo ser ses sga sgc sge sgg sgh sgi sgo sgr sgs sh- sha shc she shg shh shi sho shr shs sia sic sie sig sih sii sio sir sis soa soc soe sog soh soi soo sor sos sr- sra src sre srg srh sri sro srr srs ss- ssa ssc sse ssg ssh ssi sso ssr sss