Retrieve data from a file

i’m working on a pdf file i used the read pdf activity to read the pdf activity and have used string manipulation to retrieve the data
now i want to retrieve a part of data who’s index might get changed if we use it on any other file
is there a way we can retrieve this data without this.

Please use regex instead of using string manipulation

i’m confused about the fact that it how will i retrieve it for the particular entry. because it’s just a number. how to code it to get a specific value.