#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main(void)
{
    double b,a,f=0,F=0;
    int n,i;
    scanf("%d%lf",&n,&b);
    for(i=0;i<n;++i){
        scanf("%lf",&a);
        f+=a*pow(b,a-1);
        if(a==-1.)F+=log(abs(b));
        else F+=1/(a+1)*pow(b,a+1);
    }
    printf("%f\n%f",f,F);
    return 0;
}