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

int main() {
    
    // 1. 入力情報取得.
    int N, B;
    cin >> N >> B;
    double a[N];
    for(int i = 0; i < N; i++) cin >> a[i];
    
    // 2. 微分した値f'(B)の値を計算.
    double differential = 0.0;
    for(int i = 0; i < N; i++){
        if(a[i] > 1.0)               differential += a[i] * pow(B, a[i] - 1.0);
        if(a[i] == 1.0)              differential += 1.0;
        if(a[i] > 0.0 && a[i] < 1.0) differential += a[i] * pow(B, a[i] - 1.0);
        if(a[i] < 0.0)               differential += a[i] * pow(B, a[i] - 1.0);
    }
    
    // 3. 積分した値F(B)の値を計算.
    double integration = 0.0;
    for(int i = 0; i < N; i++){
        if(a[i] > -1.0)   integration += 1.0 / (a[i] + 1.0) * pow(B, a[i] + 1.0);
        if(a[i] == -1.0)  integration += log(B);
        if(a[i] < -1.0)   integration += 1.0 / (a[i] + 1.0) * pow(B, a[i] + 1.0);
    }
    
    // 4. 出力.
    cout << fixed;
    cout << setprecision(10);
    cout << differential << endl;
    cout << integration << endl;
    return 0;
    
}