#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<cctype>
#include<cstdlib>
#include<algorithm>
#include<bitset>
#include<cstdio>
#include<cstring>
#include<string>
#include<cctype>
#include<cstdlib>
#include<algorithm>
#include<bitset>
#include<vector>
#include<list>
#include<deque>
#include<queue>
#include<map>
#include<set>
#include<stack>
#include<cmath>
#include<sstream>
#include<fstream>
#include<iomanip>
#include<ctime>
#include<complex>
#include<functional>
#include<climits>
#include<cassert>
#include<iterator>
using namespace std;

#define MAX 11

int n;
double b;
vector<long double >v;


int main(){
	cin >> n;
	cin >> b;
	for (int i = 0; i < n; i++){
		double k;
		scanf("%lf", &k);
		v.push_back(k);
	}
	{
		double x = 0;
		for (int i = 0; i < v.size(); i++){
			x += v[i] * pow(b, v[i] - 1.0);
		}
		printf("%.16f\n", x);
	}
	{
		double xx = 0;
		for (int i = 0; i < v.size(); i++){
			if (v[i] == -1.0){
				xx += log(b);
				continue;
			}
			xx += 1.0 / (v[i] + 1.0)*pow(b, v[i] + 1.0);
		}
		printf("%.16f\n", xx);
	}
	return 0;
}