#include <iostream>
#include <vector>
#include <cstdio>
#include <sstream>
#include <map>
#include <string>
#include <algorithm>
#include <queue>
#include <cmath>
#include <functional>
#include <set>
#include <ctime>
#include <random>
using namespace std;
template<typename T> istream& operator >> (istream& is, vector<T>& vec){for(T& val: vec) is >> val; return is;}
template<typename T> istream& operator , (istream& is, T& val){ return is >> val;}
template<typename T> ostream& operator << (ostream& os, const vector<T>& vec){for(int i=0; i<vec.size(); i++) os << vec[i] << (i==vec.size()-1?"\n":" ");return os;}
template<typename T> ostream& operator , (ostream& os, T& val){ return os << " " << val;}
template<typename T> ostream& operator >> (ostream& os, T& val){ return os << " " << val;}

using namespace std;
int main(){
	int n;
	cin >> n;
	int b;
	cin >> b;
	vector<double> a(n);
	cin >> a;

	double x0 = 0;
	for(int i=0; i<n; i++){
		x0 += pow(b, a[i]-1) * a[i];
	}

	double x1 = 0;
	for(int i=0; i<n; i++){
		if(-1.00001 <= a[i] && a[i] <= -0.999999) x1 += log(b);
		else x1 += pow(b, a[i]+1) / (a[i]+1.0);
		cerr << x1 << endl;
	}

	printf("%.18f\n%.18f\n", x0, x1);
	return 0;
}