-ic a-a a-c a-i aaa aac aaf aai aan aao aar aas aax ac- aca acc acf aci acn aco acr acs acx af- afa afc aff afi afn afo afr afs afx ai- aia aic aif aii ain aio air ais aix an- ana anc anf ani ann ano anr ans anx aoa aoc aof aoi aon aoo aor aos aox ar- ara arc arf ari arn aro arr ars arx as- asa asc asf asi asn aso asr ass asx ax- axa axi axn axo axr axs axx c-- caa cac caf cai can cao car cas cax cca ccc ccf cci ccn cco ccr ccs ccx cfa cfc cff cfi cfn cfo cfr cfs cfx ci- cia cic cif cii cin cio cir cis cix cn- cna cnc cnf cni cnn cno cnr cns cnx co- coa coc cof coi con coo cor cos cox cra crc crf cri crn cro crr crs crx csa csc csf csi csn cso csr css csx cxc cxf cxi cxo cxr cxs cxx faa fac faf fai fan fao far fas fax fca fcc fcf fci fcn fco fcr fcs fcx ffa ffc fff ffi ffn ffo ffr ffs ffx fia fic fif fii fin fir fis fix fna fnc fnf fni fnn fnr fns fnx foa foc fof foi fon foo for fos fox fra frc frf fri frn fro frr frs fsa fsc fsf fsi fsn fso fsr fss fsx fxi fxr fxs fxx i-f ia- iaa iac iaf iai ian iao iar ias ica icc icf ici icn ico icr ics ifa ifc iff ifi ifn ifo ifr ifs ifx iia iic iif iii iin iio iir iis iix in- ina inc inf ini inn ino inr ins inx io- ioa ioc iof ioi ion ioo ior ios ir- ira irc irf iri irn iro irr irs irx is- isa isc isf isi isn iso isr iss ixc ixi ixn n-i naa nac naf nai nan nao nar nas nax nca ncc ncf nci ncn nco ncr ncs ncx nfa nfc nff nfi nfn nfo nfr nfs nia nic nif nii nin nio nir nis nix nna nnc nnf nni nnn nno nns no- noa noc nof noi non noo nor nos nox nra nrc nrf nri nrn nro nrr nrs nrx nsa nsc nsf nsi nsn nso nsr nss nsx nxc o-i oaa oac oaf oai oan oao oar oas oax oc- oca occ ocf oci ocn oco ocr ocs ocx of- ofa ofc off ofi ofn ofo ofr ofs ofx oia oic oif oii oin oio oir ois on- ona onc onf oni onn ono onr ons onx oo- ooa ooc oof ooi oon ooo oor oos oox or- ora orc orf ori orn oro orr ors orx os- osa osc osf osi osn oso osr oss osx ox- oxa oxc oxf oxi oxn oxo oxx ra- raa rac raf rai ran rao rar ras rax rca rcc rcf rci rcn rco rcr rcs rcx rfa rfc rff rfi rfn rfo rfr rfs ria ric rif rii rin rio rir ris rix rna rnc rni rnn rno rnr rns roa roc rof roi ron roo ror ros rox rra rrc rrf rri rrn rrr rrs rsa rsc rsf rsi rsn rso rsr rss rsx rxr rxs saa sac saf sai san sao sar sas sax sca scc scf sci scn sco scr scs scx sfa sfc sff sfi sfn sfo sfr sfs sfx sia sic sif sii sin sio sir sis six sna snc snf sni snn sno snr sns soa soc sof soi son soo sor sos sox sr- sra src srf sri srn sro srr srs srx ss- ssa ssc ssf ssi ssn sso ssr sss ssx sxc sxi sxn sxs xaa xac xaf xan xar xas xcf xci xcr xcx xfa xfn xfs xfx xia xic xii xin xio xis xix xna xnc xno xns xoa xoc xof xoi xon xoo xor xos xox xrc xrf xrx xsa xsc xsi xss xxi xxo xxx