#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int n;
  double b;
  cin >> n >> b;
  vector<double> a(n);
  rep(i, n) cin >> a[i];
  {
    double ans = 0;
    rep(i, n) ans += a[i] * pow(b, a[i] - 1);
    cout << fixed << setprecision(15) << ans << '\n';
  }
  {
    double ans = 0;
    rep(i, n) {
      if (a[i] == -1)
        ans += log(b);
      else
        ans += 1.0 / (a[i] + 1) * pow(b, a[i] + 1);
    }
    cout << fixed << setprecision(15) << ans << '\n';
  }
  return 0;
}