Project Euler problem #2 solution.

using System;
using System.Linq;

public class problem
{
    static void Main()
    {
        Problem();
        Solution();
    }

    static void Problem()
    {
        Console.WriteLine("\nBy considering the terms in the Fibonacci sequence whose values do not exceed\nfour million, find the sum of the even-valued terms:");
    }

    static void Solution()
    {
        int a   = 1;
        int b   = 1;
        int c   = 0;

        int sum = 0;
        int cap = 4000000;

        do
        {
            c = a + b;

            if (c % 2 == 0)
                sum += c;

            a = b;
            b = c;

        } while (c <= cap);

        Console.WriteLine("\n{0}\n",sum);
    }
}