import java.util.Scanner;

public class No347 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int B = sc.nextInt();
		double a[] = new double[N];
		for(int i = 0;i < N;i++) {
			a[i] = sc.nextDouble();
		}
		double sumbibun = 0;
		double sumsekibun = 0;
		
		for(int i = 0;i < N;i++) {
			if(a[i] != 0) {
				sumbibun += a[i] * Math.pow(B, a[i]-1);
			}
			if(a[i] != -1) {
				sumsekibun += Math.pow(B, a[i]+1) / (a[i]+1);
			}else if(a[i] == -1) {
				sumsekibun += Math.log(B);
			}
		}
		
		System.out.println(sumbibun);
		System.out.println(sumsekibun);
	}
}