#include <iostream>
#include <vector>
#include <list>
#include <algorithm>
#include <string>
#include <sstream>
#include <stack>
#include <iomanip>
#include <numeric>
#include <queue>
#include <climits>
#include <set>
#include <complex>
#include <cmath>
#include <cstring>
#include <map>
using namespace std;
using ll = long long;
#define MOD 1000000007
#define INF 1LL << 59
using ld = long double;

bool operator<(const pair<int, int> &a, const pair<int, int> &b)
{
    if (a.first == b.first)
    {
        return b.second > a.second;
    }
    return a.first < b.first;
}

double a[11];
int main()
{
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);
    cout << fixed << setprecision(5);

    int n;
    cin >> n;

    double ans1 = 0.0, ans2 = 0.0;

    int B;
    cin >> B;
    for (int i = 0; i < n; ++i)
        cin >> a[i];

    for (int i = 0; i < n; ++i)
    {
        ans1 += a[i] * pow(B, a[i] - 1);
    }

    for (int i = 0; i < n; ++i)
    {
        if (a[i] == -1.0)
        {
            ans2 += log(abs(B));
        }
        else
            ans2 += pow(B, a[i] + 1) / (a[i] + 1);
    }
    cout << ans1 << "\n"
         << ans2 << endl;

    return 0;
}