Update 23_sets_frozensets.py

Just added frozenset which is a built-in function in Python that takes an iterable object as input and returns an immutable frozenset object.

Author: tahirpukhta

Basics/Exercise/23_sets_frozensets/23_sets_frozensets.py

@@ -1,5 +1,5 @@
-set1 = {1, 2, 3, 4, 5}
-set2 = {4, 5, 6, 7, 8}
+set1 = frozenset({1, 2, 3, 4, 5})
+set2 = frozenset({4, 5, 6, 7, 8})
 print("Original sets:")
 print(set1)
 print(set2)