title: Beginner with regular expressions; need help writing a specific query - space, followed by 1-3 numbers, followed by any number of letters
body: <p>I'm working with some poorly formatted HTML and I need to find every instance of a certain type of pattern.  The issue is as follows:</p>
  
  <p>a space, followed by a 1 to 3 digit number, followed by letters (a word, usually).  Here are some examples of what I mean.</p>
  
  <pre><code>hello 7Out
  how 99In
  are 123May
  </code></pre>
  
  <p>So I would be looking for the expression to get the "7Out", "99In", "123May", etc.  The initial space does not need to be included.  I hope this is descriptive enough, as I am literally just starting to expose myself to regular expressions and am still struggling a bit.  In the end, I will want to count the total number of these instances and add the total count to a df that already exists, so if you have any suggestions on how to do that I would be open to that as well.  Thanks for your help in advance!</p>