UUU     UUU NNN      NNN IIIII XXX     XXXX
 UUU     UUU NNNN     NNN  III    XX   xXX  
 UUU     UUU NNNNN    NNN  III     XX xXX   
 UUU     UUU NNN NN   NNN  III      XXXX    
 UUU     UUU NNN  NN  NNN  III      xXX     
 UUU     UUU NNN   NN NNN  III     xXXXX    
 UUU     UUU NNN    NNNNN  III    xXX  XX   
  UUUuuuUUU  NNN     NNNN  III   xXX    XX  
    UUUUU    NNN      NNN IIIII xXXx    xXXx