import java.io.*;
import java.lang.*;

class Cascade {
	static BufferedReader in;
	public static void main(String[] args) throws IOException{
		in = new BufferedReader(new InputStreamReader(System.in));
		String line;
		while((line = in.readLine())!=null){
		String []split=line.split(" ");
		int n=Integer.parseInt(split[0]);
		int v=Integer.parseInt(split[1]);
		line = in.readLine();
		split = line.split(" ");
		int a[]= new int [n];
		int max=0;
		int mi=0;
		for(int i=0;i<n;i++){
			a[i]=Integer.parseInt(split[i]);
			if(a[i]>max){
				max=a[i];
				mi=i;
			}
		}
		int sucet=0;
		for(int i=0;i<=mi;i++){
		sucet+=a[i];
		}
		double velky=0.0;
		velky = sucet/((1.0+mi)*v);
		
		//vysledok 1
		int last=a[n-1];
		sucet=last;
		int c=0;
		int k=2;
		while((c=a[n-k])<last){
		sucet+=c;
		k++;
		if(n-k<0)break;
		}
		
		k--;
		double vysledok1=0.0;
		vysledok1 = sucet/(k*v+0.0);

		System.out.println(vysledok1+" "+velky);


		}//while
	}	
}