Create a webapp to enable a group of people to collaborate online on authoring a simple document. The goal is to expose the challenges that underlie building such a webapp without a framework and, to that end, it will be implemented with CGI using a scripting language (Perl).

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Whenever a user visits the URL of your webapp, a screen similar to the following is displayed:

The webapp allows several users to concurrently create a list of countries. The user enters a country name and then clicks the “add” button. The above screen shows that 4 countries have been entered so far (by all users) and 2 of them were created by this user in this session (the other 2 may have been created by other users or by this user in a prior session). The master list is displayed sorted beneath as an unordered list.