a-a a-c aaa aac aae aaj aam ac- aca acc ace acj acm aea aec aee aej aem aja ajc aje ajj ajm ama amc ame amm c-- c-j caa cac cae caj cam cca ccc cce ccj ccm ce- cea cec cee cej cem cja cjc cma cmc cme cmj cmm eaa eac eae eaj eam ec- eca ecc ece ecj ecm eea eec eee eem eja ejc em- ema emc eme emm jaa jac jae jaj jam jca jcc jce jcm jea jec jee jej jem jja jjc jjj jma jmc jme jmj jmm maa mac mae maj mam mc- mca mcc mce mcm mea mec mee mej mem mjc mje mjj mjm mma mmc mme mmj mmm