public static void StartSolution()
{
VeryBigSum sol = new VeryBigSum();
int n = Convert.ToInt32(Console.ReadLine());
string[] ar_temp = Console.ReadLine().Split(' ');
long[] ar = Array.ConvertAll(ar_temp, Int64.Parse);
long result = sol.aVeryBigSum(n, ar);
Console.WriteLine(result);
}
public void TestMethod1()
{
long sumcheck = 0;
VeryBigSum sobj = new VeryBigSum();
//long[] arr = new long[5] { 10000002, 100000003, 100000000003, 100000000006, 100000009 };
long[] arr = new long[5] {
1000000001, 8000000002, 1000000003, 1000000004, 1000000005
};
foreach (long item in arr)
{
sumcheck = sumcheck + item;
}
Assert.AreEqual(sumcheck, sobj.aVeryBigSum(arr.Length, arr));
}