a-a a-c aaa aac aae aaj aao ac- aca acc ace acj aco aea aec aee aej aeo aja ajc aje ajj ajo aoa aoc aoe aoj aoo c-- c-j caa cac cae caj cao cca ccc cce ccj cco ce- cea cec cee cej ceo cja cjc co- coa coc coe coj coo eaa eac eae eaj eao ec- eca ecc ece ecj eco eea eec eee eeo eja ejc ejo eo- eoa eoc eoe eoo jaa jac jae jaj jao jca jcc jce jco jea jec jee jej jeo jja jjc jjj joa joc joe joj joo oaa oac oae oaj oao oc- oca occ ocj oco oea oec oee oeo oja ojc oje ojo oo- ooa ooc ooo