#include<cstdio>
#include<cmath>
#define rep(i,a) for(int i=0;i<(a);++i)

const int MAX_N = 10;

int N;
double B;
double a[MAX_N];

int main()
{
	scanf( "%d%lf", &N, &B );
	
	double dr = 0, it = 0;
	rep( i, N ) 
	{
		scanf( "%lf", a+i );
		dr += a[i]*pow(B,a[i]-1);
		it += a[i]!=-1?pow(B,a[i]+1)/(a[i]+1):log(B);
	}

	printf( "%.4f\n", dr );
	printf( "%.4f\n", it );

	return 0;
}