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

signed main(){
  int N; cin >> N;
  int B; cin  >> B;
  vector< double > A( N );
  for( int i = 0; i < N; ++i )
    cin >> A[ i ];
    
  double ans1 = 0.0;
  for( int i = 0; i < N; ++i )
    ans1 += A[ i ] * pow( B, A[ i ] - 1.0 );
  cout << fixed << setprecision( 5 ) << ans1 << endl;
  
  double ans2 = 0.0;
  for( int i = 0; i < N; ++i ){
    if( A[ i ] == -1.0 )
      ans2 += log( fabs( B ) );
    else
      ans2 += 1.0 / ( A[ i ] + 1 ) * pow( B, A[ i ] + 1 ); 
  }
  cout << fixed << setprecision( 5 ) << ans2 << endl;
  
  return 0;
}