#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define EPS 1e-9

typedef vector<double> vd;

double fd(vd a, double B)
{
	double ret = 0;
	rep(i, 0, a.size())
	{
		ret += a[i] * pow(B, a[i] - 1.0);
	}
	return ret;
}

double F(vd a, double B)
{
	double ret = 0;
	rep(i, 0, a.size())
	{
		if (abs(a[i] + 1.0) < EPS)
			ret += log(B);
		else
			ret += 1.0 / (a[i] + 1.0) * pow(B, a[i] + 1.0);
	}
	return ret;
}

int main()
{
	int N; cin >> N;
	double B; cin >> B;
	vd a(N); rep(i, 0, N) cin >> a[i];

	printf("%.10f\n", fd(a, B));
	printf("%.10f\n", F(a, B));
}