#include <iostream>
#include <iomanip>
#include <vector>
#include <cmath>
using namespace std;
int main(){
	cout << fixed << setprecision(20);
	int N;
	cin >> N;
	int B;
	cin >> B;
	vector<double> a(N);
	for (int i = 0; i < N; i++){
		cin >> a[i];
	}
	double D = 0;
	for (int i = 0; i < N; i++){
		D += a[i] * pow(B, a[i] - 1);
	}
	cout << D << endl;
	double I = 0;
	for (int i = 0; i < N; i++){
		if (a[i] == -1){
			I += log(B);
		} else {
			I += pow(B, a[i] + 1) / (a[i] + 1);
		}
	}
	cout << I << endl;
}