This makes the output of the program more closely resemble that of the
original Copycat described in "FCCA" page 236:
> [T]he average final temperature of an answer can be thought of as
> the program's own assessment of that answer's quality, with lower
> temperatures meaning higher quality.
For example, running `python main.py abc abd ijk 100` produced the
following output:
ijl: 98 (avg temp 16.0)
jjk: 1 (avg temp 56.3)
ijk: 1 (avg temp 57.9)
And for `python main.py abc abd ijkk 100`:
ijkkk: 2 (avg temp 19.8)
ijkl: 51 (avg temp 28.1)
ijll: 46 (avg temp 28.9)
djkk: 1 (avg temp 77.4)
a2260cdaf6