n is 8.
k is 4.
b is 0.
above
n is 4.
k is 2.
b is 0.
above
n is 2.
k is 1.
b is 0.
above
below
n is 2.
E is 1.

below
n is 4.
E is 10.

below
n is 8.
E is 100.

1000