148. Given a number N and an array of N elements, find the Bitwise XOR of the array elements.

Given a number N and an array of N elements, find the Bitwise XOR of the array elements.
Input Size : N <= 100000
Sample Testcase :
INPUT
2
2 4
OUTPUT
6


n = int(input())
arr = list(map(int, input().split()))
result = arr[0]

for i in range(1, n):
    result = result ^ arr[i]

print(result)