python - Regular expression for matching numbers and strings -

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I have a series of words below 

  476pe e586 99 99 rrr ABCF   
 I have to write a regular expression that will match letters and numbers to characters. From the above stars, I only need to match  
  476pe e586 99 99  << Pre>  ^ [\ D] * [0-9] + [\ D] * $   
  
 I tried writing the regular expression below < 
 but this does not work, I have an online regax tool , And it shows that the entire string is matching.   
 
 
 The problem with your regex is that  \ D  excludes any number  can be anything , so that will match the character with special characters incorrectly, and will fail to match the stars with more than one, instead,  ^ [0 -9a-zA-Z] * [0-9] [0-9A-ZA-ZE] * $  . It will match any number of numbers or letters, after a number and then any number of numbers and letters will match.  
 And here one ...

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