Write a Python function first_chars that takes one parameter, which is a nested list of strings. It returns a string containing the first character of all of the non-empty strings (at whatever depth they occur in the nested list) concatenated together. Here are a couple of examples of how the function should behave when you're done:

Is a string of code written to hurt others by damaging or destroying

You have been supporting csm tech publishing's windows server 2016 server network for over a year. the office has two windows server 2016 servers running active directory and a number of other roles. management has informed you that a small sales office is opening in the same building three floors up. the sales manager wants to install a sales application on a server located in the sales office. this server will have limited physical security because there's no special room dedicated for it, which means it will be accessible to non-it personnel and visitors. you're considering installing windows server 2016 server core on the new server because accessing its console regularly probably won't be necessary, and this server will be managed from one of the other csm tech publishing servers. what are the benefits and drawbacks of using server core for this branch office? what are some things you should do to set up this server management environment?

Alcohol’s affects on the cornea and lens of the eye make it more difficult