title: Extract number (dash included) from string using regex in Python
body: <p>Hello and thanks for helping.</p>
  
  <p>String examples:</p>
  
  <p>"Hello 43543"      ---> "43543" <br>
  "John Doe 434-234" ---> "434-234"</p>
  
  <p>I need a regex to extract the examples on the right.</p>