q2rmn p2rm o2rmn2 n2rmn m2rm

1brm 0brmn2 zbrmn ybrm xbrmn2

clqmn2 blqmn alqm 9kqmn2 8kqmn

nupmn mupm lupmn2 kupmn jupm

y3om x3omn2 w3omn v3om u3omn2