-er -ic a-a a-c a-i aaa aac aae aaf aag aai aao aap aar aas ac- aca acc ace acf acg aci aco acp acr acs aea aec aee aef aeg aei aeo aep aer aes af- afa afc afe aff afg afi afo afp afr afs ag- aga agc age agf agg agi ago agp agr ags ai- aia aic aie aif aig aii aio aip air ais aoa aoc aoe aof aog aoi aoo aop aor aos ap- apa apc ape apf apg api apo app apr aps ar- ara arc are arf arg ari aro arp arr ars as- asa asc ase asf asg asi aso asp asr ass c-- caa cac cae caf cag cai cao cap car cas cca ccc cce ccf ccg cci cco ccp ccr ccs ce- cea cec cee cef ceg cei ceo cep cer ces cfa cfc cfe cff cfg cfi cfo cfp cfr cfs cga cgc cge cgg cgi cgo cgp cgr cgs ci- cia cic cie cif cig cii cio cip cir cis co- coa coc coe cof cog coi coo cop cor cos cpa cpc cpe cpf cpg cpi cpo cpp cpr cps cra crc cre crf crg cri cro crp crr crs csa csc cse csf csg csi cso csp csr css eaa eac eae eaf eag eai eao eap ear eas ec- eca ecc ece ecf ecg eci eco ecr ecs eea eec eee eef eeg eeo eep eer ees ef- efa efc efe eff efg efi efo efp efr efs ega egc ege egf egg egi ego egp egr egs eia eic eie eif eig eii eio eip eir eis eo- eoa eoc eoe eof eog eoi eoo eop eor eos ep- epa epc epe epf epg epi epo epp epr eps era erc ere erf erg eri ero erp err ers es- esa esc ese esf esg esi eso esp esr ess faa fac fae faf fag fai fao fap far fas fca fcc fce fcf fcg fci fco fcp fcr fcs fea fec fee fef feg fei feo fep fer fes ffa ffc ffe fff ffg ffi ffo ffp ffr ffs fga fgc fge fgf fgg fgi fgp fgr fgs fia fic fie fif fig fii fip fir fis foa foc foe fof fog foi foo fop for fos fpa fpc fpe fpg fpi fpo fpp fpr fps fra frc fre frf frg fri fro frp frr frs fsa fsc fse fsf fsg fsi fso fsp fsr fss g-p gaa gac gae gaf gag gai gao gap gar gas gca gcc gce gcf gcg gci gco gcp gcr gcs ge- gea gec gee gef geg gei geo gep ger ges gfa gfc gfe gff gfi gfo gfp gfr gfs gga ggc ggg ggi ggo ggp ggr ggs gia gic gie gif gig gii gio gip gir gis goa goc goe gof gog goi goo gop gor gos gpa gpc gpe gpf gpg gpi gpo gpp gpr gps gra grc gre grf grg gri gro grp grr grs gsa gsc gse gsf gsg gsi gso gsp gsr gss i-f ia- iaa iac iae iaf iag iai iao iap iar ias ica icc ice icf icg ici ico icp icr ics ie- iea iec iee ief ieg iei iep ier ies ifa ifc ife iff ifg ifi ifo ifp ifr ifs iga igc ige igf igg igi igo igp igr igs iia iic iie iif iii iio iip iir iis io- ioa ioc ioe iof iog ioi ioo iop ior ios ipa ipc ipe ipf ipg ipi ipo ipp ipr ips ir- ira irc ire irf irg iri iro irp irr irs is- isa isc ise isf isg isi iso isp isr iss o-i oaa oac oae oaf oag oai oao oap oar oas oc- oca occ ocf ocg oci oco ocp ocr ocs oea oec oee oef oeg oei oeo oep oer oes of- ofa ofc ofe off ofg ofi ofo ofp ofr ofs oga ogc oge ogf ogg ogi ogo ogp ogs oia oic oie oif oii oio oip oir ois oo- ooa ooc oof oog ooi ooo oop oor oos op- opa opc ope opf opg opi opo opp opr ops or- ora orc ore orf org ori oro orp orr ors os- osa osc ose osf osg osi oso osp osr oss p-p paa pac pae paf pag pai pao pap par pas pca pcc pce pcf pcg pci pco pcp pcr pcs pea pec pee pef peg pei peo pep per pes pfa pfc pfe pff pfg pfi pfo pfp pfr pfs pga pgc pge pgf pgg pgi pgo pgp pgr pgs pia pic pie pif pig pii pio pip pir pis poa poc poe pof pog poi poo pop por pos ppa ppc ppe ppf ppg ppi ppo ppp ppr pps pra prc pre prf prg pri pro prp prr prs ps- psa psc pse psf psg psi pso psp psr pss ra- raa rac rae raf rag rai rao rap rar ras rca rcc rce rcf rcg rci rco rcp rcr rcs re- rea rec ree ref reg rei reo rep rer res rfa rfc rfe rff rfg rfi rfo rfp rfr rfs rga rgc rge rgf rgg rgi rgo rgp rgr rgs ria ric rie rif rig rii rio rip rir ris roa roc roe rof rog roi roo rop ror ros rpa rpc rpe rpf rpg rpi rpo rpp rpr rps rra rrc rrf rrg rri rrp rrr rrs rsa rsc rse rsf rsg rsi rso rsp rsr rss saa sac sae saf sag sai sao sap sar sas sca scc sce scf scg sci sco scp scr scs se- sea sec see sef seg sei seo sep ser ses sfa sfc sfe sff sfg sfi sfo sfp sfr sfs sga sgc sge sgf sgg sgi sgo sgp sgr sgs sia sic sie sif sig sii sio sip sir sis soa soc soe sof sog soi soo sop sor sos spa spc spe spf spg spi