BBbbBBBBBb    RrrRrrRr      EeEEeeeeEE n       n n       n EeEEeeeeEE n       n
 b        bBB  r       rRr   ee         NN      n NN      n  e         NN      n
 b          BB r          R   e         N n     N N n     N  E         n n     N
 b        bbB  R        RrR   e         N  N    N N  N    N  e         n  N    n
 BBBbBBBBbb    rrRRrRrrr      eeeEEE    n   N   n n   N   n  eEEeeee   N   n   N
 B        bBb  r    Rr        e         N    n  n N    n  n  e         N    N  N
 b          bb r     RR       E         N     N N N     N N  e         n     n n
 B        bBb  B      r       e         n      nn n      nn  E         N      NN
 bbBbbbBbBBB   b       rr    EEeEeeeeEE n       N n       N eEeEEEEee  n       n