#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;

int main(){
   double f = 0,F = 0;
   int n,b;
   cin >> n >> b;
   double a[n];
   for(int i = 0;i < n;i++) cin >> a[i];
   for(int i = 0;i < n;i++){
      f += a[i] * pow(b,a[i] - 1);
      if(a[i] != -1) F += 1 / (a[i] + 1) * pow(b,a[i] + 1);
      else F += log(b);
   }
   cout << fixed << setprecision(10) << f << endl << F << endl;
}