#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;
using ll = long long;

int main()
{
    int n, b;
    double x1 = 0, x2 = 0;
    cin >> n >> b;
    vector<double> v(n);
    for (int i = 0; i < n; i++) cin >> v[i];
    for (int i = 0; i < n; i++){
        double fac1 = 1, fac2 = 1, b1 = b;
        double p = v[i], q;
        if (v[i] != -1) q = 1/(v[i] + 1);
        x1 += p*pow(b1, p-1);
        if (v[i] != -1) {
            x2 += q*pow(b1, p+1);
        } else x2 += log(b);
    }
    cout << fixed << setprecision(5) << x1 << endl << x2 << endl;
}