HackerRank Python - Set Symmetric-difference Operation

The .symmetric_difference() operator returns a set with all the elements that are in the set and the iterable but not both.
Sometimes, a ^ operator is used in place of the .symmetric_difference() tool, but it only operates on the set of elements in set.
The set is immutable to the .symmetric_difference() operation (or ^ operation).

  1. # Enter your code here. Read input from STDIN. Print output to STDOUT
  2. e = int(input())
  3. eng = set(map(int,input().split()))
  4. f = int(input())
  5. fre = set(map(int,input().split()))
  6. print(len(eng ^ fre))

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