import java.util.*;

public class Main {
	public static void main (String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		double b = sc.nextInt();
		double[] arr = new double[n];
		for (int i = 0; i < n; i++) {
		    arr[i] = sc.nextDouble();
		}
		double x1 = 0;
		for (int i = 0; i < n; i++) {
		    x1 += arr[i] * Math.pow(b, arr[i] - 1);
		}
		System.out.println(x1);
		double x2 = 0;
		for (int i = 0; i < n; i++) {
		    if (arr[i] == -1.0) {
		        x2 += Math.log(b);
		    } else {
		        x2 += Math.pow(b, arr[i] + 1) / (arr[i] + 1);
		    }
		}
		System.out.println(x2);
	}
}