% XORD YORD NPcode %----------------------------- 0 0 4 2 0 0 4 0 0 6 0 0 8 0 2 0 2 4 2 2 0 4 2 0 6 2 0 8 2 2 0 4 4 2 4 0 4 4 0 6 4 0 8 4 2 %-----------------------------