using System;

​

public class Program

{

    public static void Main()

    {

        double[] chevy = new double[8];

        double[] ford = new double[8];

        //This will be replaced by your console app.

        chevy[0] = double.Parse("5.4");

        ford[0] = double.Parse("5.8");

​

        chevy[1] = double.Parse("7.2");

        ford[1] = double.Parse("6.9");

        chevy[2] = double.Parse("4.0");

        ford[2] = double.Parse("3.9");

        chevy[3] = double.Parse("9.1");

        ford[3] = double.Parse("9.2");

​

        chevy[4] = double.Parse("5.8");

        ford[4] = double.Parse("5.8");

​

        chevy[5] = double.Parse("3.9");

        ford[5] = double.Parse("3.8");

​

        chevy[6] = double.Parse("6.2");

        ford[6] = double.Parse("6.0");

​

        chevy[7] = double.Parse("8.1");

        ford[7] = double.Parse("8.5");

​

        int chevyWins = 0, fordWins = 0;

        for (int i = 0; i < 8; i++)

        {

            if (chevy[i] < ford[i])

            {

                //Note the difference with your code, your are doing 

                //the subtraction chevy[i] - ford[i] that will give you negative numbers.

                chevyWins++;

                Console.WriteLine(String.Format("Chevy won by {0}", (ford[i] - chevy[i])));

            }

            else if (chevy[i] > ford[i])

            {

                fordWins++;

                Console.WriteLine(String.Format("Ford won by {0}", (chevy[i] - ford[i])));

            }

            else

            {

                Console.WriteLine("Tie!");

            }

        }

​

        if (chevyWins > fordWins)

        {

            Console.WriteLine("Chevy Wins the competition!");

        }

        else if (chevyWins < fordWins)

        {

            Console.WriteLine("Ford Wins the competition!");

        }

        else

        {

            Console.WriteLine("The competition was tie!");

        }

    }

}