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


class Magatro
{

    static int N, B;
    static double[] a;
    static void Main()
    {
        N = int.Parse(Console.ReadLine());
        B = int.Parse(Console.ReadLine());
        a = Console.ReadLine().Split(' ').Select(double.Parse).ToArray();
        double X1 = 0, X2 = 0;
        for(int i = 0; i < N; i++)
        {
            X1 += a[i] * Math.Pow(B, a[i] - 1.0);
            if (a[i] == -1.0)
            {
                X2 += Math.Log(Math.Abs(B));
            }
            else
            {
                X2 += (1.0 / (a[i] + 1.0)) * Math.Pow(B, a[i] + 1.0);
            }
        }
        Console.WriteLine("{0}\n{1}", X1, X2);
    }
}