-ic c-- ccc ccf cci cck ccn cco ccs ccx cfc cff cfi cfk cfn cfo cfs cfx ci- cic cif cii cik cin cio cis cix ckc cki cko cks ckx cn- cnc cnf cni cnn cno cns cnx co- coc cof coi cok con coo cos cox csc csf csi csk csn cso css csx cxc cxf cxi cxk cxo cxs cxx fcc fcf fci fck fcn fco fcs fcx ffc fff ffi ffk ffn ffo ffs ffx fic fif fii fik fin fis fix fkc fkf fki fkk fnc fnf fni fnk fnn fns fnx foc fof foi fok fon foo fos fox fsc fsf fsi fsk fsn fso fss fsx fxi fxs fxx i-f icc icf ici ick icn ico ics ifc iff ifi ifn ifo ifs ifx iic iif iii iin iio iis iix ikc ikf iki ikk iko iks ikx in- inc inf ini ink inn ino ins inx io- ioc iof ioi ion ioo ios is- isc isf isi isk isn iso iss ixc ixi ixn kcc kci kck kcn kcs kcx kfc kff kfi kfo kfs kfx kic kif kii kik kin kio kis kix kkc kki kkk kkn kks kn- knc knf kni knk knn kno knx koc kof koi kok kon koo kos ksc ksf ksi ksk ksn kso kss kxo n-i ncc ncf nci nck ncn nco ncs ncx nfc nff nfi nfk nfn nfo nfs nic nif nii nik nin nio nis nix nkc nkf nki nkk nkn nko nks nnc nnf nni nnk nnn nno nns no- noc nof noi nok non noo nos nox nsc nsf nsi nsk nsn nso nss nsx nxc o-i oc- occ ocf oci ock ocn oco ocs ocx of- ofc off ofi ofn ofo ofs ofx oic oif oii oik oin oio ois okc oki okk oko oks on- onc onf oni onk onn ono ons onx oo- ooc oof ooi ook oon ooo oos oox os- osc osf osi osk osn oso oss osx ox- oxc oxf oxi oxn oxo oxx scc scf sci sck scn sco scs scx sfc sff sfi sfk sfn sfo sfs sfx sic sif sii sik sin sio sis six sk- skc skf ski skk sko sks skx snc snf sni snk snn sno sns soc sof soi sok son soo sos sox ss- ssc ssf ssi ssk ssn sso sss ssx sxc sxi sxn sxs xcf xci xcx xfn xfs xfx xic xii xin xio xis xix xks xnc xnk xno xns xoc xof xoi xok xon xoo xos xox xsc xsi xss xxi xxo xxx