a-a a-c aaa aac aaj aao aar ac- aca acc acj aco acr aja ajc ajj ajo ajr aoa aoc aoj aoo aor ar- ara arc arj aro arr c-- c-j caa cac caj cao car cca ccc ccj cco ccr cja cjc cjr co- coa coc coj coo cor cra crc crj cro crr jaa jac jaj jao jar jca jcc jco jcr jja jjc jjj jjr joa joc joj joo jor jra jrc jro jrr oaa oac oaj oao oar oc- oca occ ocj oco ocr oja ojc ojo oo- ooa ooc ooo oor or- ora orc oro orr ra- raa rac raj rao rar rca rcc rcj rco rcr rja rjc rjr roa roc roj roo ror rra rrc rrr