a-a a-b a-i aaa aab aai aak aam ab- aba abb abi abk abm ai- aia aib aii aik aim aka akb aki akk akm ama amb ami amk amm baa bab bai bak bam bba bbb bbi bbk bbm bi- bia bib bii bik bim bka bkb bkk bkm bma bmb bmi bmk bmm ia- iaa iab iai iam iba ibb ibi ibk ibm iia iib iii iim ika ikb iki ikk im- ima imb imi imm ka- kaa kab kai kak kam kba kbb kbi kbk kbm kia kib kii kik kim kkb kki kkk kkm kma kmb kmi kmk kmm maa mab mai mak mam mba mbb mbi mbk mbm mi- mia mib mii mik mim mka mkb mkk mkm mma mmb mmi mmk mmm