-ic a-a a-c a-i aaa aac aae aag aai aan aao aas ac- aca acc ace acg aci acn aco acs aea aec aee aeg aei aen aeo aes ag- aga agc age agg agi agn ago ags ai- aia aic aie aig aii ain aio ais an- ana anc ane ang ani ann ano ans aoa aoc aoe aog aoi aon aoo aos as- asa asc ase asg asi asn aso ass c-- caa cac cae cag cai can cao cas cca ccc cce ccg cci ccn cco ccs ce- cea cec cee ceg cei cen ceo ces cga cgc cge cgg cgi cgn cgo cgs ci- cia cic cie cig cii cin cio cis cn- cna cnc cne cng cni cnn cno cns co- coa coc coe cog coi con coo cos csa csc cse csg csi csn cso css eaa eac eae eag eai ean eao eas ec- eca ecc ece ecg eci ecn eco ecs eea eec eee eeg een eeo ees ega egc ege egg egi egn ego egs eia eic eie eig eii ein eio eis en- ena enc ene eng eni enn eno ens eo- eoa eoc eoe eog eoi eon eoo eos es- esa esc ese esg esi esn eso ess gaa gac gae gag gai gan gao gas gca gcc gce gcg gci gcn gco gcs ge- gea gec gee geg gei gen geo ges gga ggc ggg ggi ggn ggo ggs gia gic gie gig gii gin gio gis gna gnc gne gni gnn gno gns goa goc goe gog goi gon goo gos gsa gsc gse gsg gsi gsn gso gss ia- iaa iac iae iag iai ian iao ias ica icc ice icg ici icn ico ics ie- iea iec iee ieg iei ien ies iga igc ige igg igi ign igo igs iia iic iie iii iin iio iis in- ina inc ine ing ini inn ino ins io- ioa ioc ioe iog ioi ion ioo ios is- isa isc ise isg isi isn iso iss n-i naa nac nae nag nai nan nao nas nca ncc nce ncg nci ncn nco ncs ne- nea nec nee neg nei nen neo nes nga ngc nge ngg ngi ngn ngo ngs nia nic nie nig nii nin nio nis nna nnc nne nng nni nnn nno nns no- noa noc noe nog noi non noo nos nsa nsc nse nsg nsi nsn nso nss o-i oaa oac oae oag oai oan oao oas oc- oca occ ocg oci ocn oco ocs oea oec oee oeg oei oen oeo oes oga ogc oge ogg ogi ogn ogo ogs oia oic oie oii oin oio ois on- ona onc one ong oni onn ono ons oo- ooa ooc oog ooi oon ooo oos os- osa osc ose osg osi osn oso oss saa sac sae sag sai san sao sas sca scc sce scg sci scn sco scs se- sea sec see seg sei sen seo ses sga sgc sge sgg sgi sgn sgo sgs sia sic sie sig sii sin sio sis sna snc sne sng sni snn sno sns soa soc soe sog soi son soo sos ss- ssa ssc sse ssg ssi ssn sso sss