Biggest Table Row

using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;

public class BiggestTableRow
{
    public static void Main()
    {
        const string pattern = @"<tr><td>.*?<\/td><td>(.*?)<\/td><td>(.*?)<\/td><td>(.*?)<\/td><\/tr>";

        Regex regex = new Regex(pattern);

        Console.ReadLine();
        Console.ReadLine();

        string row = Console.ReadLine();

        double maxSum = double.MinValue;
        bool found = false;
        List<string> elements = new List<string>();

        while (row != "</table>")
        {
            var data = regex.Match(row);
            double currentSum = 0;
            List<string> currentElements = new List<string>();
            string firstStore = data.Groups[1].Value;
            string secondStore = data.Groups[2].Value;
            string thirdStore = data.Groups[3].Value;

            if (firstStore != "-")
            {
                found = true;
                currentSum += double.Parse(firstStore);
                currentElements.Add(firstStore);
            }

            if (secondStore != "-")
            {
                found = true;
                currentSum += double.Parse(secondStore);
                currentElements.Add(secondStore);
            }

            if (thirdStore != "-")
            {
                found = true;
                currentSum += double.Parse(thirdStore);
                currentElements.Add(thirdStore);
            }

            if (currentSum > maxSum)
            {
                maxSum = currentSum;
                elements = currentElements;
            }

            row = Console.ReadLine();
        }

        if (!found)
        {
            Console.WriteLine("no data");
        }
        else
        {
            Console.WriteLine("{0} = {1}", maxSum, string.Join(" + ", elements));
        }
    }
}