How in sets to take each word for a new object?

Question

Python

Good evening, I need to accept a large text in the input, where the names of the objects are separated by a comma, and fit them into a set, so that each object is separate. This is necessary for the next comparison of them with another set (you need to find which objects from the first set are missing in the other). I only thought of entering the objects manually, one at a time through the while loop. But it is necessary to insert a large text consisting of these objects and take each object from it.

isx = set()
treb = set()

a = input()
b = input()

isx.add(a)
treb.add(b)

result = isx ^ treb

print(isx, treb, result)

Answer 1

a = {x.strip() for x in input().split(",")}
b = {x.strip() for x in input().split(",")}
print(b - a)