#include <cstring>
#include <iostream>
#include <vector>
#include <string>
#include <map>
#include <queue>
#include <algorithm>

int main() {

  int N, B;
  double a[64];

  std::cin >> N >> B;
  for(int i = 0; i < N; ++i) {
    std::cin >> a[i];
  }

  {
    double res = 0;
    for(int i = 0; i < N; ++i) {
      res += a[i] * pow((double)B, a[i] - 1.0);
    }
    printf("%.20lf\n", res);
  }

  {
    double res = 0;
    for(int i = 0; i < N; ++i) {
      if( std::abs(a[i] + 1.0) >= 0.001 ) {
        res += 1.0 / (a[i] + 1.0) * pow((double)B, a[i] + 1.0);
      }
      else {
        res += log(B);
      }
    }
    printf("%.20lf\n", res);
  }
  
  return 0;
}