using System;

namespace No347
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int b = int.Parse(Console.ReadLine());
            string[] sa = Console.ReadLine().Split(' ');
            double diff = 0.0, inte = 0.0;
            double a;

            for (int i = 0; i < n; i++)
            {
                a = double.Parse(sa[i]);

                diff += a * Math.Pow((double)b, a - 1.0);

                if (a == -1.0)
                    inte += Math.Log10(Math.Abs(a));
                else
                    inte += Math.Pow((double)b, a + 1.0) / (a + 1.0);
            }

            Console.WriteLine(diff);
            Console.WriteLine(inte);
        }
    }
}