-ic a-a a-c a-i aaa aac aae aaf aag aai aan aao aas ac- aca acc ace acf acg aci acn aco acs aea aec aee aef aeg aei aen aeo aes af- afa afc afe aff afg afi afn afo afs ag- aga agc age agf agg agi agn ago ags ai- aia aic aie aif aig aii ain aio ais an- ana anc ane anf ang ani ann ano ans aoa aoc aoe aof aog aoi aon aoo aos as- asa asc ase asf asg asi asn aso ass c-- caa cac cae caf cag cai can cao cas cca ccc cce ccf ccg cci ccn cco ccs ce- cea cec cee cef ceg cei cen ceo ces cfa cfc cfe cff cfg cfi cfn cfo cfs cga cgc cge cgg cgi cgn cgo cgs ci- cia cic cie cif cig cii cin cio cis cn- cna cnc cne cnf cng cni cnn cno cns co- coa coc coe cof cog coi con coo cos csa csc cse csf csg csi csn cso css eaa eac eae eaf eag eai ean eao eas ec- eca ecc ece ecf ecg eci ecn eco ecs eea eec eee eef eeg een eeo ees ef- efa efc efe eff efg efi efo efs ega egc ege egf egg egi egn ego egs eia eic eie eif eig eii ein eio eis en- ena enc ene enf eng eni enn eno ens eo- eoa eoc eoe eof eog eoi eon eoo eos es- esa esc ese esf esg esi esn eso ess faa fac fae faf fag fai fan fao fas fca fcc fce fcf fcg fci fcn fco fcs fea fec fee fef feg fei fen feo fes ffa ffc ffe fff ffg ffi ffn ffo ffs fga fgc fge fgf fgg fgi fgn fgs fia fic fie fif fig fii fin fis fna fnc fne fnf fng fni fnn fns foa foc foe fof fog foi fon foo fos fsa fsc fse fsf fsg fsi fsn fso fss gaa gac gae gaf gag gai gan gao gas gca gcc gce gcf gcg gci gcn gco gcs ge- gea gec gee gef geg gei gen geo ges gfa gfc gfe gff gfi gfo gfs gga ggc ggg ggi ggn ggo ggs gia gic gie gif gig gii gin gio gis gna gnc gne gnf gni gnn gno gns goa goc goe gof gog goi gon goo gos gsa gsc gse gsf gsg gsi gsn gso gss i-f ia- iaa iac iae iaf iag iai ian iao ias ica icc ice icf icg ici icn ico ics ie- iea iec iee ief ieg iei ien ies ifa ifc ife iff ifg ifi ifn ifo ifs iga igc ige igf igg igi ign igo igs iia iic iie iif iii iin iio iis in- ina inc ine inf ing ini inn ino ins io- ioa ioc ioe iof iog ioi ion ioo ios is- isa isc ise isf isg isi isn iso iss n-i naa nac nae naf nag nai nan nao nas nca ncc nce ncf ncg nci ncn nco ncs ne- nea nec nee nef neg nei nen neo nes nfa nfc nfe nff nfi nfn nfo nfs nga ngc nge ngf ngg ngi ngn ngo ngs nia nic nie nif nig nii nin nio nis nna nnc nne nnf nng nni nnn nno nns no- noa noc noe nof nog noi non noo nos nsa nsc nse nsf nsg nsi nsn nso nss o-i oaa oac oae oaf oag oai oan oao oas oc- oca occ ocf ocg oci ocn oco ocs oea oec oee oef oeg oei oen oeo oes of- ofa ofc ofe off ofg ofi ofn ofo ofs oga ogc oge ogf ogg ogi ogn ogo ogs oia oic oie oif oii oin oio ois on- ona onc one onf ong oni onn ono ons oo- ooa ooc oof oog ooi oon ooo oos os- osa osc ose osf osg osi osn oso oss saa sac sae saf sag sai san sao sas sca scc sce scf scg sci scn sco scs se- sea sec see sef seg sei sen seo ses sfa sfc sfe sff sfg sfi sfn sfo sfs sga sgc sge sgf sgg sgi sgn sgo sgs sia sic sie sif sig sii sin sio sis sna snc sne snf sng sni snn sno sns soa soc soe sof sog soi son soo sos ss- ssa ssc sse ssf ssg ssi ssn sso sss