Unfortunately i am not so good with regular expressions since i don't use them so often and i can't practice them as i would, but i would like to try to give you an answer because i think regular exepressions are a really expressive language.
Then
i arrived to this one
If i am not wrong this expression recognises any character (zero or more times) followed by
or
sequence followed by any character (zero or more times)
But, as i told you, i am not so good with it and you surely find better answers