struct Pair
{
    public bool first;
    public int firstBirthWeekDay;
    public bool second;
    public int secondBirthWeekDay;
}

class Program
{
    static readonly Random rnd = new Random();

    private static IEnumerable<Pair> Pairs()
    {
        for (int i = 0; i < 100*1000*1000; ++i)
        {
            var pair = new Pair
                        {
                            first = rnd.Next(2) == 0,
                            firstBirthWeekDay = rnd.Next(7) + 1,
                            second = rnd.Next(2) == 0,
                            secondBirthWeekDay = rnd.Next(7) + 1,
                        };
            yield return pair;
        }
    }

    private static void Main()
    {
        int N = 0;
        int count = 0;
        var pairsWithM2 = Pairs().Where(pair => (pair.first && pair.firstBirthWeekDay == 2) ||
                                                (pair.second && pair.secondBirthWeekDay == 2));
        foreach (var pair in pairsWithM2)
        {
            ++N;
            if (pair.first && pair.second)
                ++count;
        }
        Console.WriteLine(N);
        Console.WriteLine(count);
        Console.WriteLine((double) count/N);
        Console.ReadKey();
    }
}