#include <bits/stdc++.h>
using namespace std;

#define rep(i,n) for (int i=0;i<(n);i++)
#define rep2(i,a,b) for (int i=(a);i<(b);i++)
#define rrep(i,n) for (int i=(n)-1;i>=0;i--)
#define rrep2(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define all(a) (a).begin(),(a).end()

typedef long long ll;
typedef pair<int, int> P;

signed main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(0);

    int N;
    cin >> N;
    int B;
    cin >> B;
    vector<double> a(N);
    rep(i, N) cin >> a[i];

    double diff = 0;
    rep(i, N) {
        diff += a[i] * pow(B, a[i] - 1);
    }
    printf("%.10f\n", diff);

    double integ = 0;
    rep(i, N) {
        if (a[i] == -1) {
            integ += log(B);
        } else {
            integ += pow(B, a[i] + 1) / (a[i] + 1);
        }
    }
    printf("%.10f\n", integ);
}