// yukicoder: No.347 微分と積分
// 2019.5.11

#include <stdio.h>
#include <math.h>

#define EPS 1e-8
#define EQ(a,b) (fabs(a-b)<=EPS)

int N, B;
double a[12];

double diff()
{
	int i;
	double s = 0;
	for (i = 0; i < N; i++) {
		if (EQ(a[i], 0));
		else if (EQ(a[i], 1)) s += 1.0;
		else s += a[i]*pow(B, a[i]-1);
	}
	return s;
}

double integ()
{
	int i;
	double s = 0;
	for (i = 0; i < N; i++) {
		if (EQ(a[i], -1)) s += log(B);
		else s += pow(B, a[i]+1)/(1.0+a[i]);
	}
	return s;
}

int main()
{
	int i;

	scanf("%d%d", &N, &B);
	for (i = 0; i < N; i++) scanf("%lf", a+i);
	printf("%.10lf\n%.10lf\n", diff(), integ());
	return 0;
}