#include <bits/stdc++.h>

using namespace std;

#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()

template<typename A, typename B> inline bool chmax(A &a, B b) { if (a<b) { a=b; return 1; } return 0; }
template<typename A, typename B> inline bool chmin(A &a, B b) { if (a>b) { a=b; return 1; } return 0; }

typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, pii> P;

const ll INF = 1ll<<29;
const ll MOD = 1000000007;
const double EPS  = 1e-10;

int n, b;
double a[10];

int main() {
	cin >> n >> b;
	REP(i, n) scanf("%lf", a + i);
	
	long double x1 = 0.0, x2 = 0.0;
	REP(i, n) x1 += pow<long double>(b, a[i] - 1) * a[i];
	REP(i, n) {
		if (a[i] == -1.0) x2 += log(b);
		else x2 += pow<long double>(b, a[i] + 1) / (a[i] + 1);
	}
	
	printf("%.15Lf\n", x1);
	printf("%.15Lf\n", x2);
	
	return 0;	
}