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**Python **is a widely-used, interpreted, **object-oriented, and high-level programming** language with dynamic semantics, used for general-purpose programming. It was created by **Guido van Rossum**, and first released on **February 20, 1991**.

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** Link for the Problem** – Set .symmetric_difference() Operation in python – HackerRank Solution

Set .symmetric_difference() Operation in python – HackerRank Solution

**Problem :**

**.symmetric_difference()**

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).

>>> s = set("Hacker") >>> print s.symmetric_difference("Rank") set(['c', 'e', 'H', 'n', 'R', 'r']) >>> print s.symmetric_difference(set(['R', 'a', 'n', 'k'])) set(['c', 'e', 'H', 'n', 'R', 'r']) >>> print s.symmetric_difference(['R', 'a', 'n', 'k']) set(['c', 'e', 'H', 'n', 'R', 'r']) >>> print s.symmetric_difference(enumerate(['R', 'a', 'n', 'k'])) set(['a', 'c', 'e', 'H', (0, 'R'), 'r', (2, 'n'), 'k', (1, 'a'), (3, 'k')]) >>> print s.symmetric_difference({"Rank":1}) set(['a', 'c', 'e', 'H', 'k', 'Rank', 'r']) >>> s ^ set("Rank") set(['c', 'e', 'H', 'n', 'R', 'r'])

**Task**

Students of District College have subscriptions to *English* and *French* newspapers. Some students have subscribed to *English* only, some have subscribed to *French* only, and some have subscribed to both newspapers.

You are given two sets of student roll numbers. One set has subscribed to the *English* newspaper, and one set has subscribed to the *French* newspaper. Your task is to find the total number of students who have subscribed to either the *English* or the *French* newspaper but *not both*.

**Input Format**

The first line contains the number of students who have subscribed to the *English* newspaper.

The second line contains the space separated list of student roll numbers who have subscribed to the *English* newspaper.

The third line contains the number of students who have subscribed to the *French* newspaper.

The fourth line contains the space separated list of student roll numbers who have subscribed to the *French* newspaper.

**Constraints**

**Output Format**

Output total number of students who have subscriptions to the *English* or the *French* newspaper but *not both*.

**Sample Input**

9 1 2 3 4 5 6 7 8 9 9 10 1 2 3 11 21 55 6 8

**Sample Output**

8

**Explanation**

The roll numbers of students who have subscriptions to *English* or *French* newspapers but *not both* are:

and .

Hence, the total is students.

Set .symmetric_difference() Operation in python – HackerRank Solution

# Set .symmetric_difference() Operation in python - Hacker Rank Solution # Python 3 # Enter your code here. Read input from STDIN. Print output to STDOUT # Set .symmetric_difference() Operation in python - Hacker Rank Solution START N1 = int(input()) storage1 = set(input().split()) N2 = int(input()) storage2 = set(input().split()) storage3 = storage1.symmetric_difference(storage2) print(len(storage3)) # Set .symmetric_difference() Operation in python - Hacker Rank Solution END

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