Revert "Initial commit"

This reverts commit 6a1fa8e3330406c1c1be90af65f06b3ba5f8a09d.
Revert "Revert "Initial commit""

This reverts commit a2621c1d53406a7977bca3d364b442094936119e.
Merge remote-tracking branch 'upstream/master'
2 Problem 2

(*) Find the last but one element of a list.

(Note that the Lisp transcription of this problem is incorrect.)
Merge pull request #3 from minddnim/master

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