Hello Bio Student, Please give an example of what you mean my match? Do you mean "exact match", do you mean longest common substring, longest common subsequence, et al?

Also, how big is the text for which you are trying to find your pattern? Do you only want the first match, or all matches? A little more detail would help greatly.

If you could give an example that shows what you believe the code should return for your inputs would help as well.