Revert "Revert "Update and rename Guess your secret num.py to 6.00xL3 PROBLEM 9  -Guess your secret num.py""

This reverts commit 0be1e8e1a8b1ddc3ee5c5e2e41a19dc1353017a2.
Revert "Revert "Revert "Update and rename Guess your secret num.py to 6.00xL3 PROBLEM 9  -Guess your secret num.py"""

This reverts commit c450d8912bc764df6194b2aa5c424dc520a9c34e.