-ic a-a a-c a-i a-t aaa aac aae aai aak aat aax ac- aca acc ace aci ack act acx aea aec aee aei aek aet aex ai- aia aic aie aii aik ait aix aka akc ake aki akk at- ata atc ate ati att atx ax- axa axe axi axk axt axx c-- caa cac cae cai cak cat cax cca ccc cce cci cck cct ccx ce- cea cec cee cei cek cet cex ci- cia cic cie cii cik cit cix cka ckc cki ckt ckx cta ctc cte cti ctk ctt ctx cxc cxi cxk cxt cxx eaa eac eae eai eak eat eax ec- eca ecc ece eci eck ect ecx eea eec eee eek eet eex eia eic eie eii eik eit eix eka ekc eke eki ekt eta etc ete eti etk ett etx ex- exa exc exe exi ext exx ia- iaa iac iae iai iat ica icc ice ici ick ict ie- iea iec iee iei iek iet iex iia iic iie iii iit iix ika ikc ike iki ikk ikt ikx ita itc ite iti itk itt itx ixc ixe ixi k-t ka- kaa kac kae kai kak kat kax kca kcc kce kci kck kct kcx ke- kea kec kee kei kek ket kex kia kic kie kii kik kit kix kkc kke kki kkk kkt kta ktc kte ktk ktt t-x taa tac tae tai tak tat tax tca tcc tce tci tck tct tcx te- tea tec tee tei tek tet tex tia tic tie tii tik tit tix tka tkc tke tkk tkt tta ttc tte tti ttk ttt ttx txe txi txk txt xaa xac xak xat xci xcx xee xet xex xia xic xie xii xit xix xke xtc xti xtx xxi xxx