#include <iostream>
#include <vector>
#include <algorithm>
#include <iomanip>
using namespace std;

#define RREP(i,s,e) for (i = e-1; i >= s; i--)
#define rrep(i,n) RREP(i,0,n)
#define REP(i,s,e) for (i = s; i < e; i++)
#define rep(i,n) REP(i,0,n)
#define INF 1e8

typedef long long ll;

int main() {
    int i, n, b;
    double x;
    double a[10];
    cin >> n >> b;
    cout << fixed << setprecision(5);
    rep (i,n) cin >> a[i];
    x = 0;
    rep (i,n) x += a[i] * pow(b,a[i]-1);
    cout << x << endl;
    x = 0;
    rep (i,n) x += (a[i] == -1) ? log(b) : pow(b,a[i]+1) / (a[i]+1);
    cout << x << endl;
    return 0;
}