a-a a-c aaa aac aaf aah aas aau ac- aca acc acf ach acs acu af- afa afc aff afh afs afu aha ahc ahf ahh ahs ahu as- asa asc asf ash ass asu au- aua auc auf auh aus c-- caa cac caf cah cas cau cca ccc ccf cch ccs ccu cfa cfc cff cfh cfs cfu ch- cha chc chf chh chs chu csa csc csf csh css csu cua cuc cuf cuh cus cuu faa fac faf fah fas fau fca fcc fcf fcs fcu ffa ffc fff ffh ffs ffu fha fhc fhf fhh fhs fsa fsc fsf fsh fss fsu fua fuf fus fuu haa hac haf hah has hau hca hcc hcf hch hcs hfa hfc hff hfh hfs hfu hha hhc hhf hhh hhs hhu hsa hsc hsf hsh hss hsu hua huc huf huh hus huu saa sac saf sah sas sau sca scc scf sch scs scu sfa sfc sff sfh sfs sfu sh- sha shc shf shh shs shu ss- ssa ssc ssf ssh sss ssu sua suc suf suh sus suu ua- uaa uac uaf uah uas uau uca ucc ucf uch ucs ucu ufa ufc uff ufh ufs ufu uha uhc uhf uhh uhs uhu usa usc usf ush uss usu uua uuc uus uuu