77778888aaaa6666
dddd000011119999
6666777788886666
eeeeaaaabbbb5555
ffffeeeeeeeeaaaa
8888bbbb33332222
000099994444cccc
cccceeee6666eeee
eeee6666eeeecccc
cccc444499990000
22223333bbbb8888
aaaaeeeeeeeeffff
5555bbbbaaaaeeee
6666888877776666
999911110000dddd
6666aaaa88887777