public static Result LargeSum(Problem arguments)
{
string m;
string sequence = arguments.Sequence;
int digits = Convert.ToInt32(arguments.LongNumber);
string[] numbers = sequence.Split(',').ToArray <string>();
int height = numbers.Length;
int width = numbers[0].Length;
int[,] matrix = UtilityMath.LoadMatrix(numbers, height, width);
string sum = UtilityMath.AddMatrix(matrix);
if (digits < sum.Length)
{
m = string.Format("The first {0} digits of the large sum are {1}.", digits, sum.Substring(0, digits));
}
else
{
m = "Error: not enough digits specified.";
}
var r = new Result(arguments.Id, m);
return(r);
}