import java.util.*;
public class Profit{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        
        if(!sc.hasNextInt()){
            System.out.println("Invalid input");
            return;
        }
        
        int n = sc.nextInt();
        if(n<=0){
            System.out.pritnln("Invalid input");
            return;
        }
        
        int arr[] = new int[n];
        for(int i=0; i<n; i++){
            arr[i] = sc.nextInt();
        }
        
        int small = arr[0];
        int index = 0;
        
        for(int i=0; i<n; i++){
            if(arr[i]<small){
                small = arr[i];
                index = i;
            }
        }
        
        int largest = arr[index];
        
        for(int i=index; i<n; i++){
            if(arr[i]> largest){
                largest = arr[i];
            }
        }
        
        int profit = largest-small;
        System.out.println(profit);
        System.out.printf("%.2f%n", (double)(profit * 100) / arr[0]);
        
        sc.close();
    }
}