a-a a-c aaa aac aae aas aau ac- aca acc ace acs acu aea aec aee aes aeu as- asa asc ase ass asu au- aua auc aue aus c-- caa cac cae cas cau cca ccc cce ccs ccu ce- cea cec cee ces ceu csa csc cse css csu cua cuc cue cus cuu eaa eac eae eas eau ec- eca ecc ece ecs ecu eea eec eee ees es- esa esc ese ess esu eu- eua euc eue eus saa sac sae sas sau sca scc sce scs scu se- sea sec see ses seu ss- ssa ssc sse sss ssu sua suc sue sus suu ua- uaa uac uae uas uau uca ucc uce ucs ucu uea uec uee ues usa usc use uss usu uua uuc uue uus uuu