-ic a-a a-c a-i aaa aac aag aai aan aao aas aax ac- aca acc acg aci acn aco acs acx ag- aga agc agg agi agn ago ags agx ai- aia aic aig aii ain aio ais aix an- ana anc ang ani ann ano ans anx aoa aoc aog aoi aon aoo aos aox as- asa asc asg asi asn aso ass asx ax- axa axi axn axo axs axx c-- caa cac cag cai can cao cas cax cca ccc ccg cci ccn cco ccs ccx cga cgc cgg cgi cgn cgo cgs ci- cia cic cig cii cin cio cis cix cn- cna cnc cng cni cnn cno cns cnx co- coa coc cog coi con coo cos cox csa csc csg csi csn cso css csx cxc cxi cxo cxs cxx gaa gac gag gai gan gao gas gca gcc gcg gci gcn gco gcs gga ggc ggg ggi ggn ggo ggs gia gic gig gii gin gio gis gna gnc gni gnn gno gns goa goc gog goi gon goo gos gox gsa gsc gsg gsi gsn gso gss gsx gxa gxs ia- iaa iac iag iai ian iao ias ica icc icg ici icn ico ics iga igc igg igi ign igo igs iia iic iii iin iio iis iix in- ina inc ing ini inn ino ins inx io- ioa ioc iog ioi ion ioo ios is- isa isc isg isi isn iso iss ixc ixi ixn n-i naa nac nag nai nan nao nas nax nca ncc ncg nci ncn nco ncs ncx nga ngc ngg ngi ngn ngo ngs nia nic nig nii nin nio nis nix nna nnc nng nni nnn nno nns no- noa noc nog noi non noo nos nox nsa nsc nsg nsi nsn nso nss nsx nxc o-i oaa oac oag oai oan oao oas oax oc- oca occ ocg oci ocn oco ocs ocx oga ogc ogg ogi ogn ogo ogs ogx oia oic oii oin oio ois on- ona onc ong oni onn ono ons onx oo- ooa ooc oog ooi oon ooo oos oox os- osa osc osg osi osn oso oss osx ox- oxa oxc oxi oxn oxo oxx saa sac sag sai san sao sas sax sca scc scg sci scn sco scs scx sga sgc sgg sgi sgn sgo sgs sgx sia sic sig sii sin sio sis six sna snc sng sni snn sno sns soa soc sog soi son soo sos sox ss- ssa ssc ssg ssi ssn sso sss ssx sxc sxi sxn sxs xaa xac xag xan xas xci xcx xgi xia xic xii xin xio xis xix xna xnc xno xns xoa xoc xog xoi xon xoo xos xox xsa xsc xsi xss xxi xxo xxx