import java.util.Scanner;

class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        double b,a,f=0,F=0;
        int n=sc.nextInt();
        b=sc.nextDouble();
        for(int i=0;i<n;++i){
            a=sc.nextDouble();
            f+=a*Math.pow(b,a-1);
            if(a==-1.)F+=Math.log(Math.abs(b));
            else F+=1/(a+1)*Math.pow(b,a+1);
        }
        sc.close();
        System.out.print(f+"\n"+F);
    }
}