BBBBB   EEEEE   III   N   N  OOO   RRRR    III  U   U  SSSSS
 B    B  E        I    NN  N O   O  R   R   I    U   U  S
 BBBBB   EEEE     I    N N N O   O  RRRR    I    U   U  SSSSS
 B    B  E        I    N  NN O   O  R  R    I    U   U     S
 BBBBB   EEEEE   III   N   N  OOO   R   R   III   UUU   SSSSS