I have a string that is part of a whole paragragh. the string of the length keeps changing but I only need the last 6 characters of the string.
We have made a payment to your account XXXXXX8114 at ABC as instructed by XYZ.
The string in bold can change length, can be XXXXXXXXXXX8114, so at any one point, I would want only the last 6 digits. so XX8114.