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

int n;
int b;
double a[10];

int main(){
	int i;
	
	cin >> n >> b;
	for( i = 0; i < n; i++ )
		cin >> a[i];
	
	double f = 0;
	double F = 0;
	for( i = 0; i < n; i++ ){
		f += a[i] * pow((double)b, a[i] - 1.0);
		if( fabs(a[i] + 1.0) > 1e-6 )
			F += 1 / (a[i] + 1) * pow((double)b, a[i] + 1.0);
		else
			F += log((double)b);
	}
	printf("%.14f\n", f);
	printf("%.14f\n", F);
	return 0;
}