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

typedef double D;

int main() {
    cout<<fixed;
    cout<<setprecision(10);
    int N,B;cin>>N>>B;
    vector<D> a(N);
    for(auto& it : a)cin>>it;
    {
        D ans=0;
        for(auto& it : a)ans+=it*pow(B,it-1);
        cout<<ans<<endl;
    }
    {
        D ans=0;
        for(auto& it : a)
        if(it==-1.0)ans+=log(B);
        else ans+=pow(B,it+1)/(it+1);
        cout<<ans<<endl; 
    }
    return 0;
}