def aVeryBigSum(ar):
    sum = 0
    for a in ar:
        sum += a
    return sum


if __name__ == '__main__':
    ar = [1000000001, 1000000002, 1000000003, 1000000004, 1000000005]
    print(aVeryBigSum(ar))

42b567f4850e0066b9e206707e65e8a716ecebe1
<mask token>

def aVeryBigSum(ar):
    sum = 0
    for a in ar:
        sum += a
    return sum


<mask token>

def aVeryBigSum(ar):
    sum = 0
    for a in ar:
        sum += a
    return sum


if __name__ == '__main__':
    ar = [1000000001, 1000000002, 1000000003, 1000000004, 1000000005]
    print(aVeryBigSum(ar))
