Also, start from 1 in the positive direction, instead of 5, since that
is more how the thing works (sorry, mathematician brain).
Additionally, adds some extra information in the comments:
information about how long the code would take if one actually sets
count to 2,5 * 10^12, and adding a plus in front of the 4/1 to show that
that is in fact the first element of the "plus" side.
Finally, add an (floating point) error to the debug print.