#include <iostream>
#include <vector>
#include <string>
#include <sstream>
#include <algorithm>
#include <map>
#include <set>
#include <cstdio>
#include <cmath>
#define rep(i,l,n) for(lint i=l;i<n;i++)
#define rer(i,l,n) for(lint i=l;i<=n;i++)
#define all(a) a.begin(),a.end()
#define o(a) cout<<a<<endl
using namespace std;
typedef long long lint;
typedef vector<int> vi;
typedef vector<lint> vli;
typedef vector<vi> vvi;
typedef pair<int,int> pii;

int main(){
	int n;
	double b;
	cin>>n>>b;
	vector<double> a(n);
	rep(i,0,n) cin>>a[i];
	double x1=0,x2=0;
	rep(i,0,n){
		x1+=a[i]*pow(b,a[i]-1.0);
	}
	rep(i,0,n){
		if(abs(a[i]+1.0)<1e-12) x2+=log(b);
		else x2+=pow(b,a[i]+1.0)/(a[i]+1.0);
	}
	printf("%.10lf\n%.10lf\n",x1,x2);
}