#include<iostream>

using namespace std;

int main(){
    int n;
    while(cin>>n){
        int count1=0;
        int count2=0;
        int sum=0;
        while(n--){
            int temp;
            cin>>temp;
            if(temp<0){
                count1++;
            }
            else if(temp>0){
                sum+=temp;
                count2++;
            }
            else{

            }
        }

        printf("%d\ %0.1f\n",count1,count2!=0 ? (double)sum/count2 : 0.0);

    }

    return 0;
}