a-a a-c aaa aac aae aaf aao aas aau ac- aca acc ace acf aco acs acu aea aec aee aef aeo aes aeu af- afa afc afe aff afo afs afu aoa aoc aoe aof aoo aos aou as- asa asc ase asf aso ass asu au- aua auc aue auf auo aus c-- caa cac cae caf cao cas cau cca ccc cce ccf cco ccs ccu ce- cea cec cee cef ceo ces ceu cfa cfc cfe cff cfo cfs cfu co- coa coc coe cof coo cos cou csa csc cse csf cso css csu cua cuc cue cuf cuo cus cuu eaa eac eae eaf eao eas eau ec- eca ecc ece ecf eco ecs ecu eea eec eee eef eeo ees ef- efa efc efe eff efo efs eo- eoa eoc eoe eof eoo eos eou es- esa esc ese esf eso ess esu eu- eua euc eue euf eus faa fac fae faf fao fas fau fca fcc fce fcf fco fcs fcu fea fec fee fef feo fes feu ffa ffc ffe fff ffo ffs ffu foa foc foe fof foo fos fou fsa fsc fse fsf fso fss fsu fua fue fuf fuo fus fuu oaa oac oae oaf oao oas oau oc- oca occ ocf oco ocs ocu oea oec oee oef oeo oes of- ofa ofc ofe off ofo ofs ofu oo- ooa ooc oof ooo oos os- osa osc ose osf oso oss osu ou- oua ouc oue ouf ouo ous saa sac sae saf sao sas sau sca scc sce scf sco scs scu se- sea sec see sef seo ses seu sfa sfc sfe sff sfo sfs sfu soa soc soe sof soo sos sou ss- ssa ssc sse ssf sso sss ssu sua suc sue suf suo sus suu ua- uaa uac uae uaf uao uas uau uca ucc uce ucf uco ucs ucu uea uec uee uef ues ufa ufc ufe uff ufo ufs ufu uoa uoc uoe uoo uos usa usc use usf uso uss usu uua uuc uue uus uuu