- {k00, k01, k02, k03}, \
- {k10, k11, k12, k13}, \
- {k20, k21, k22, k23}, \
- {k30, k31, k32, XXX}, \
- {k40, k41, k42, k43}, \
- {k50, XXX, k52, XXX} \
+ {k00, k01, k02, k03}, \
+ {k10, k11, k12, k13}, \
+ {k20, k21, k22, k23}, \
+ {k30, k31, k32, XXX}, \
+ {k40, k41, k42, k43}, \
+ {k50, XXX, k52, XXX} \