#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include<map>
#include<utility>
#include<set>
#include<stack>
#include<queue>
#include<deque>
#include<cmath>
#include<cstdio>
#include<cstring>
#include<cstdlib>
#include<bitset>
#include<sstream>
#include<list>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);++i)
#define nrep(i,i0,n) for(int i=(i0);i<(int)(n);++i)
typedef vector<int> vi; typedef pair<int,int> pii; typedef vector<pair<int,int> > vpii;
typedef long long ll;


int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	int n,b;cin>>n>>b;
	vector<double> a(n);
	rep(i,n)cin>>a[i];
	double x1,x2;x1=x2=0;
	rep(i,n){
		if(a[i]!=0.0)x1+=a[i]*pow(b,(a[i]-1));
		if(a[i]!=-1.0)x2+=pow(b,(a[i]+1))/(a[i]+1);
		else x2+=log(b);
	}
	printf("%.5f\n%.5f\n",x1,x2);
	return 0;
}