No. The reason for doing this program is to learn how the built-in
method might work. You will not receive full credit for the problem
unless you have written your own subroutine findAndReplace() which
does not use the replace() method. However, feel free to use other
built-in methods such as .find() and/or .index() if you wish. --RS
Note: You can resubmit solutions that the Auto Judge has
already said YES to and PC2 will not penalize your score,
even if later submissions prove to be incorrect. This
is good if you want to clean things up for full credit and the
"style" points Ron mentioned. We recommend that if you do this,
please send us email so that we look at the correct Python program
that you want us to grade (we will probably assume it is the last
YES submission from you, but we might overlook that). --JJ