Simple Array Sum

#Given an array of integers, find the sum of its elements.
#For example, if the array ar = [1,2,3], 1+2+3 = 6, so return 6.
#Function Description
#Complete the simpleArraySum function in the editor below. It must return the sum of the array elements as an integer.
#simpleArraySum has the following parameter(s):
#ar: an array of integers
#Input Format
#The first line contains an integer, n, denoting the size of the array. 
#The second line contains n space-separated integers representing the array's elements.
#Constraints
#0<n,ar[i]<=1000
#Output Format
#Print the sum of the array's elements as a single integer.


#!/bin/python3

import os
import sys

#
# Complete the simpleArraySum function below.
#
def simpleArraySum(ar):
    return sum(ar)

if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    ar_count = int(input())

    ar = list(map(int, input().rstrip().split()))

    result = simpleArraySum(ar)

    fptr.write(str(result) + '\n')

    fptr.close()