a b c d e f g h   
h g f e d c b a   
c d f h a  b c g e g  g c c a a  e e g d h  e b c a g 
c h h a b  g d f h e  a f a g e  c a g f e  a f d d g 
c g c d d  a b f a f  f f a d d  h b a g b  c a g f e 
a f d d g  c g c d b  a b f a f  c f a d d  h b a g b 
cgfef deaha hcgeh fcahh ecgbf hedcd echba ceeeb bbehg gfddf 
ahhgb ahgbh bdfbe ghcaa cbada caehc aecgc ebhhg bddfh dbche 
hgcff befgf hbgah gacgd chacb feabg ghbfg bdfbe cgcga efhde 
hefeb ggehb hghgc ecfge ebgab dbedh bhhbc bafef bcgfb bdbee 
gabdg ecbga fbdab achch fgfba cdbca gdaag bdbhc fbfba cgbcd