#include<iostream>
#include<vector>
#include<string>
#include<algorithm>	
#include<map>
#include<set>
#include<utility>
#include<cmath>
#include<cstring>
#include<queue>
#include<cstdio>
#include<sstream>
#include<iomanip>
#define loop(i,a,b) for(int i=a;i<b;i++) 
#define rep(i,a) loop(i,0,a)
#define pb push_back
#define mp make_pair
#define all(in) in.begin(),in.end()
#define shosu(x) fixed<<setprecision(x)
using namespace std;
//kaewasuretyuui
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<pii> vp;
typedef vector<vp> vvp;
typedef pair<int,pii> pip;
typedef vector<pip>vip;
const double PI=acos(-1);
const double EPS=1e-8;
const ll inf=1e17;
int main(){
	int n,m;
	cin>>n>>m;
	vector<double>in(n);
	rep(i,n)cin>>in[i];
	double a=0,b=0;
	rep(i,n){
		a+=in[i]*pow(m,in[i]-1);
		if(in[i]==-1)b+=log(m);
		else b+=pow(m,in[i]+1)/(in[i]+1);
	}
	cout<<shosu(9)<<a<<endl<<b<<endl;
}