a-a a-c aaa aac aaf aam aau ac- aca acc acf acm acu af- afa afc aff afm afu ama amc amf amm amu au- aua auc auf aum c-- caa cac caf cam cau cca ccc ccf ccm ccu cfa cfc cff cfm cfu cma cmc cmf cmm cmu cua cuc cuf cum cuu faa fac faf fam fau fca fcc fcf fcm fcu ffa ffc fff ffm ffu fma fmc fmf fmm fmu fua fuf fum fuu m-f maa mac maf mam mau mc- mca mcc mcf mcm mcu mfa mfc mff mfm mfu mma mmc mmf mmm mmu mua muc muf mum muu ua- uaa uac uaf uam uau uca ucc ucf ucm ucu ufa ufc uff ufm ufu um- uma umc umf umm umu uua uuc uum uuu