-ic a-a a-b a-c a-i a-t aaa aab aac aad aai aan aat aax ab- aba abb abc abd abi abn abt abx ac- aca acb acc acd aci acn act acx ad- ada adb adc add adi adn adt adx ai- aia aib aic aid aii ain ait aix an- ana anb anc and ani ann ant anx at- ata atb atc atd ati atn att atx ax- axa axi axn axt axx baa bab bac bad bai ban bat bax bba bbb bbc bbd bbi bbn bbt bbx bca bcb bcc bcd bci bcn bct bcx bda bdb bdc bdd bdi bdt bdx bi- bia bib bic bid bii bin bit bix bna bnb bnc bnd bni bnn bnt bnx bta btb btc btd bti btn btt btx bxb bxd bxi bxn bxx c-- caa cab cac cad cai can cat cax cba cbb cbc cbd cbi cbn cbt cbx cca ccb ccc ccd cci ccn cct ccx cda cdb cdc cdd cdi cdn cdt cdx ci- cia cib cic cid cii cin cit cix cn- cna cnb cnc cnd cni cnn cnt cnx cta ctb ctc ctd cti ctn ctt ctx cxc cxi cxt cxx daa dab dac dad dai dan dat dax dba dbb dbc dbd dbi dbn dbt dbx dca dcb dcc dcd dci dcn dct dcx dda ddb ddc ddd ddi ddn ddt ddx di- dia dib dic did dii din dit dix dna dnb dnc dnd dni dnn dnt dta dtb dtc dtd dti dtn dtt dtx dxc dxd dxi dxn dxt dxx i-d ia- iaa iab iac iad iai ian iat iba ibb ibc ibd ibi ibn ibt ibx ica icb icc icd ici icn ict ida idb idc idd idi idn idt idx iia iib iic iid iii iin iit iix in- ina inb inc ind ini inn int inx ita itb itc itd iti itn itt itx ixc ixi ixn n-i naa nab nac nad nai nan nat nax nba nbb nbc nbd nbi nbn nbt nbx nca ncb ncc ncd nci ncn nct ncx nda ndb ndc ndd ndi ndn ndt nia nib nic nid nii nin nit nix nna nnb nnc nni nnn nnt nta ntb ntc ntd nti ntn ntt ntx nxc nxd nxt t-x taa tab tac tad tai tan tat tax tba tbb tbc tbd tbi tbn tbt tca tcb tcc tcd tci tcn tct tcx tda tdb tdc tdd tdi tdn tdt tdx tia tib tic tid tii tin tit tix tna tnb tnc tnd tni tnn tnt tnx tta ttb ttc ttd tti ttn ttt ttx txi txn txt xaa xac xad xan xat xbc xbx xcb xcd xci xcx xda xdb xdc xdi xdt xia xic xii xin xit xix xna xnc xtc xti xtx xxi xxx