a-a a-c aaa aac aad aae aas aau aax ac- aca acc acd ace acs acu acx ad- ada adc add ade ads adu adx aea aec aed aee aes aeu aex as- asa asc asd ase ass asu asx au- aua auc aud aue aus aux ax- axa axe axs axx c-- caa cac cad cae cas cau cax cca ccc ccd cce ccs ccu ccx cda cdc cdd cde cds cdu cdx ce- cea cec ced cee ces ceu cex csa csc csd cse css csu csx cua cuc cud cue cus cuu cxc cxs cxx daa dac dad dae das dau dax dca dcc dcd dce dcs dcu dcx dda ddc ddd dde dds ddu ddx de- dea dec ded dee des deu dex dsa dsc dsd dse dss dsu dsx dua duc dud due dus dux dxc dxd dxs dxx eaa eac ead eae eas eau eax ec- eca ecc ecd ece ecs ecu ecx ed- eda edc edd ede eds edu edx eea eec eed eee ees eex es- esa esc esd ese ess esu esx eu- eua euc eud eue eus eux ex- exa exc exd exe exs exu exx saa sac sad sae sas sau sax sca scc scd sce scs scu scx sda sdc sdd sde sds sdu se- sea sec sed see ses seu sex ss- ssa ssc ssd sse sss ssu ssx sua suc sud sue sus suu sux sxc sxs sxu ua- uaa uac uad uae uas uau uca ucc ucd uce ucs ucu uda udc udd ude uds udu udx uea uec ued uee ues usa usc usd use uss usu usx uua uuc uue uus uuu uxc uxu xaa xac xad xas xau xcd xcx xda xdc xde xds xed xee xes xeu xex xsa xsc xss xue xus xxx