dP     dP   aGGGGGb.         dP  dP     dP 
 GG     GG  dG'   `GG         GG  GG   .dG' 
 GG    .GP  GG                GG  GGaaaGP'  
 GG    dG'  GG                GG  GG   `Gb. 
 GG  .dGP   YG.   .GG  GG.  .dGP  GG     GG 
 GGGGGG'     YGGGGGP'   `YGGGG'   dP     dP