Use get texk activity and use strict selector and also make your strict selector dynamic by using aaname in attribut and use the * to get any captcha and store it into a variable then use type into and pass the variable into that.
Cheers
I would suggest giving a read to points mentioned in below posts..
How to automate Captcha, if it is possible - #2 by rodrigo.simao
Welcome to the community
first thing its not advised to try captcha automation as its mean for robots not to use
second if you want to try .then two ways…check how the captcha is in html…if its based on image then save the image and try reading
if non visible attribute then try to find the element and take a screenshot of that regiona dn then try
cheers