记负均正

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while(in.hasNext()) {
            int n = in.nextInt();
            double sum = 0;
            int nums = 0;
            int count = 0;
            
            for(int i = 0; i < n; i++) {
                int input = in.nextInt();
                if(input < 0) {
                    nums ++;
                } else if(input > 0){
                    count ++;
                    sum += input;
                } 
            }
            
            double ave = Math.round(sum/count*10)/10.0;
            
            System.out.print(nums + " " + ave);
        }
    }

}