title: Need a regular expression in C# to do the following listed below
body: <p>can anyone help me with coming up with regular expression o find the following in C#
  [39,UNBUN_PAIRS] has bad exclusion indicator type [ S].</p>
  
  <p>I want to ensure that we are finding [NUM, LETTER]  AND ENDING WITH TYPE[# OR LETTER].</p>
  
  <p>Can anyone give me a c# code that will do this?</p>