#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {

    cin.tie(nullptr);
    ios::sync_with_stdio(false);

    int N;
    double B;
    cin>>N>>B;
    vector<double> A(N);
    for(int i=0;i<N;i++)cin>>A[i];
    double an=0.0,bn=0.0;
    for(int i=0;i<N;i++){
        an+=A[i]*pow(B,A[i]-1);
        if(abs(A[i]+1.0)<0.2){
            bn+=log(B);
        }
        else{
            bn+=1.0/(A[i]+1)*pow(B,A[i]+1);
        }
    }
    cout<<fixed<<setprecision(15)<<an<<"\n"<<bn<<endl;
}