-ic a-a a-c a-i aaa aac aag aai aak aan aao aas ac- aca acc acg aci ack acn aco acs ag- aga agc agg agi agk agn ago ags ai- aia aic aig aii aik ain aio ais aka akc akg aki akk akn ako aks an- ana anc ang ani ank ann ano ans aoa aoc aog aoi aok aon aoo aos as- asa asc asg asi ask asn aso ass c-- caa cac cag cai cak can cao cas cca ccc ccg cci cck ccn cco ccs cga cgc cgg cgi cgn cgo cgs ci- cia cic cig cii cik cin cio cis cka ckc cki cko cks cn- cna cnc cng cni cnn cno cns co- coa coc cog coi cok con coo cos csa csc csg csi csk csn cso css gaa gac gag gai gak gan gao gas gca gcc gcg gci gck gcn gco gcs gga ggc ggg ggi ggn ggo ggs gia gic gig gii gik gin gio gis gka gkn gko gks gna gnc gni gnn gno gns goa goc gog goi gok gon goo gos gsa gsc gsg gsi gsk gsn gso gss ia- iaa iac iag iai ian iao ias ica icc icg ici ick icn ico ics iga igc igg igi igk ign igo igs iia iic iii iin iio iis ika ikc iki ikk iko iks in- ina inc ing ini ink inn ino ins io- ioa ioc iog ioi ion ioo ios is- isa isc isg isi isk isn iso iss ka- kaa kac kag kai kak kan kao kas kca kcc kcg kci kck kcn kcs kga kgc kgi kgo kgs kia kic kig kii kik kin kio kis kkc kki kkk kkn kks kn- kna knc kng kni knk knn kno koa koc kog koi kok kon koo kos ksa ksc ksg ksi ksk ksn kso kss n-i naa nac nag nai nak nan nao nas nca ncc ncg nci nck ncn nco ncs nga ngc ngg ngi ngk ngn ngo ngs nia nic nig nii nik nin nio nis nka nkc nki nkk nkn nko nks nna nnc nng nni nnk nnn nno nns no- noa noc nog noi nok non noo nos nsa nsc nsg nsi nsk nsn nso nss o-i oaa oac oag oai oak oan oao oas oc- oca occ ocg oci ock ocn oco ocs oga ogc ogg ogi ogn ogo ogs oia oic oii oik oin oio ois oka okc okg oki okk oko oks on- ona onc ong oni onk onn ono ons oo- ooa ooc oog ooi ook oon ooo oos os- osa osc osg osi osk osn oso oss saa sac sag sai sak san sao sas sca scc scg sci sck scn sco scs sga sgc sgg sgi sgk sgn sgo sgs sia sic sig sii sik sin sio sis sk- ska skc skg ski skk sko sks sna snc sng sni snk snn sno sns soa soc sog soi sok son soo sos ss- ssa ssc ssg ssi ssk ssn sso sss