-ic a-a a-c a-i a-t aaa aac aaf aai aan aao aat aax ac- aca acc acf aci acn aco act acx af- afa afc aff afi afn afo aft afx ai- aia aic aif aii ain aio ait aix an- ana anc anf ani ann ano ant anx aoa aoc aof aoi aon aoo aot aox at- ata atc atf ati atn ato att atx ax- axa axi axn axo axt axx c-- caa cac caf cai can cao cat cax cca ccc ccf cci ccn cco cct ccx cfa cfc cff cfi cfn cfo cft cfx ci- cia cic cif cii cin cio cit cix cn- cna cnc cnf cni cnn cno cnt cnx co- coa coc cof coi con coo cot cox cta ctc ctf cti ctn cto ctt ctx cxc cxf cxi cxo cxt cxx faa fac faf fai fan fao fat fax fca fcc fcf fci fcn fco fct fcx ffa ffc fff ffi ffn ffo fft ffx fia fic fif fii fin fit fix fna fnc fnf fni fnn fnt fnx foa foc fof foi fon foo fot fox fta ftc ftf fti ftn fto ftt ftx fxi fxt fxx i-f ia- iaa iac iaf iai ian iao iat ica icc icf ici icn ico ict ifa ifc iff ifi ifn ifo ift ifx iia iic iif iii iin iio iit iix in- ina inc inf ini inn ino int inx io- ioa ioc iof ioi ion ioo iot ita itc itf iti itn ito itt itx ixc ixi ixn n-i naa nac naf nai nan nao nat nax nca ncc ncf nci ncn nco nct ncx nfa nfc nff nfi nfn nfo nft nia nic nif nii nin nio nit nix nna nnc nnf nni nnn nno nnt no- noa noc nof noi non noo not nox nta ntc ntf nti ntn nto ntt ntx nxc nxt o-i oaa oac oaf oai oan oao oat oax oc- oca occ ocf oci ocn oco oct ocx of- ofa ofc off ofi ofn ofo oft ofx oia oic oif oii oin oio oit on- ona onc onf oni onn ono ont onx oo- ooa ooc oof ooi oon ooo oot oox ot- ota otc otf oti otn oto ott ox- oxa oxc oxf oxi oxn oxo oxt oxx t-x taa tac taf tai tan tao tat tax tca tcc tcf tci tcn tco tct tcx tfa tfc tff tfi tfn tfo tft tfx tia tic tif tii tin tio tit tix tna tnc tnf tni tnn tno tnt tnx to- toa toc tof toi ton too tot tox tta ttc ttf tti ttn tto ttt ttx txf txi txn txt xaa xac xaf xan xat xcf xci xcx xfa xfn xft xfx xia xic xii xin xio xit xix xna xnc xno xoa xoc xof xoi xon xoo xot xox xtc xtf xti xtx xxi xxo xxx