#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef complex<double> P;
typedef pair<int,int> pii;
#define REP(i,n) for(ll i=0;i<n;++i)
#define REPR(i,n) for(ll i=1;i<n;++i)
#define FOR(i,a,b) for(ll i=a;i<b;++i)

#define DEBUG(x) cout<<#x<<": "<<x<<endl
#define DEBUG_VEC(v) cout<<#v<<":";REP(i,v.size())cout<<" "<<v[i];cout<<endl
#define ALL(a) (a).begin(),(a).end()

#define MOD (ll)(1e9+7)
#define ADD(a,b) a=((a)+(b))%MOD
#define FIX(a) ((a)%MOD+MOD)%MOD

typedef double Real;

int main(){
  int n;
  Real b;
  cin>>n>>b;
  Real a[n];
  REP(i,n)cin>>a[i];
  cout.precision(10);
  // bibun
  Real x = 0.0;
  REP(i,n){
    x += a[i]*pow(b,a[i]-1);
  }
  cout<<fixed<<x<<endl;
  // sekibun
  x = 0.0;
  REP(i,n){
    if(a[i]!=-1.0){
      x += pow(b,a[i]+1.0)/(a[i]+1.0);
    }else{
      x += log(b);
    }
    // DEBUG(x);
  }
  cout<<fixed<<x<<endl;
  return 0;
}