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

int main() {
    int n, b;
    cin >> n >> b;
    vector<double> a(n);
    rep(i, n) cin >> a[i];

    double div = 0.0;
    rep(i, n) div += a[i] * pow(b, a[i]-1.0);
    printf("%.6f\n", div);
    double mul = 0.0;
    rep(i, n) {
        if(a[i] == -1.0) {
            mul += log(b);
        } else {
            mul += pow(b, a[i]+1.0) / (a[i] + 1.0);
        }
    }
    printf("%.6f\n", mul);
}