import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
import java.util.Stack;

/**
 *
 * @author muran4
 */
public class Cascade {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        // TODO code application logic here
        
         BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        
        String line;
        String[] arr;
        long[] serie;
        int num;
        while((line = input.readLine())!=null){
            arr = line.split(" ");
            num = Integer.parseInt(arr[0]);
            int speed = Integer.parseInt(arr[1]);
            line = input.readLine();
            //arr = line.split(" ");
            Scanner in = new Scanner(line);
            serie = new long[num];
            long min = Long.MAX_VALUE;
            for (int i = 0; i < num; i++) {
                
                serie[i] = in.nextLong();
                if(min> serie[i])min= serie[i];
            }
            double offset = (min*1.0)/speed;
            for (int i = 0; i < num; i++) {
                
                serie[i] = serie[i]-min;
                
            }
            Stack<Double> timeStack = new Stack();
            Stack<Double> speedStack = new Stack();
//            double time = serie[0]*1.0/speed;
//            
//            timeStack.push(time);
//            speedStack.push(speed*1.0);
            double temp = 0;
            for (int i = 0; i < num; i++) {
//                f
                fill(serie[i], speed, timeStack, speedStack, 0.0);
            }
            
            
//            System.out.print(offset+timeStack.peek());
double first = offset+timeStack.peek();
            while(!timeStack.isEmpty()){
                temp = timeStack.pop();
            }
//            System.out.println(" "+(temp+offset));
            
            double second = temp+offset;
            System.out.format("%.8f %.8f%n",first,second);
            
        }
    }

    private static void fill(double amount, double speed, Stack<Double> timeStack, Stack<Double> speedStack, double time) {
//        System.out.println(amount+" "+speed+" "+time);
        double ttime = amount / speed +time;
        if(timeStack.isEmpty()){
            timeStack.push(ttime);
            speedStack.push(speed);
            return;
        }
        if(ttime<timeStack.peek()){
            timeStack.push(ttime);
            speedStack.push(speed);
            return;
        }
        if(ttime == timeStack.peek()){
            speedStack.push(speedStack.pop()+speed);
            return;
        }
        
        double nAmount = amount - (timeStack.peek()-time)*speed;
        double nSpeed = speed+speedStack.pop();
        double nTime = timeStack.pop();
        fill(nAmount, nSpeed, timeStack, speedStack, nTime);
                
    }
    
}