-ic a-a a-c a-i aaa aac aad aae aah aai aax ac- aca acc acd ace ach aci acx ad- ada adc add ade adh adi adx aea aec aed aee aeh aei aex aha ahc ahd ahe ahh ahi ahx ai- aia aic aid aie aih aii aix ax- axa axe axh axi axx c-- caa cac cad cae cah cai cax cca ccc ccd cce cch cci ccx cda cdc cdd cde cdh cdi cdx ce- cea cec ced cee ceh cei cex ch- cha chc chd che chh chi chx ci- cia cic cid cie cih cii cix cxc cxh cxi cxx daa dac dad dae dah dai dax dca dcc dcd dce dci dcx dda ddc ddd dde ddh ddi ddx de- dea dec ded dee deh dei dex dh- dha dhc dhd dhe dhh dhi di- dia dic did die dih dii dix dxc dxd dxi dxx eaa eac ead eae eah eai eax ec- eca ecc ecd ece ech eci ecx ed- eda edc edd ede edh edi edx eea eec eed eee eex eha ehc ehd ehe ehh ehi eia eic eid eie eii eix ex- exa exc exd exe exh exi exx h-i haa hac had hae hah hai hax hca hcc hcd hce hch hci hda hdc hdd hde hdh hdi hdx he- hea hec hed hee heh hei hex hha hhc hhd hhe hhh hhi hia hic hid hie hih hii hix hxc hxd i-d ia- iaa iac iad iae iah iai ica icc icd ice ich ici ida idc idd ide idh idi idx ie- iea iec ied iee iei iex iha ihc ihd ihe ihh ihi iia iic iid iie iih iii iix ixc ixe ixi xaa xac xad xcd xch xci xcx xda xdc xde xdh xdi xed xee xex xhd xia xic xie xii xix xxi xxx