#include <iostream>
#include <iomanip>
using namespace std;
void vidUgis();
int main ()
{
    vidUgis();
    return 0;
}
    void vidUgis(){
    int n, un, i = 0, b = 0;
    double ugisv = 0, ugism = 0, vidv = 0, vidm = 0;
    cout << "Iveskite mokiniu skaiciu: "; cin >> n;
    cout << "Iveskite ugius: " << endl;
    while (n > 0){
        cin >> un;
        if (un > 0)
        {
            ugism = ugism + un;
            b++;
        }
        else
        {
            ugisv = ugisv + un;
            i++;
        }
        n--;
    }
    vidm = ugism / b;
    vidv = ugisv * (-1) / i;
    cout << "Vidmerginu - " << fixed << setprecision(1) << vidv << endl;
    cout << "Vidvaikinu - " << fixed << setprecision(1) << vidm << endl;
    cout << "merginu - " << b;
    cout << "vaikinu - " << i;
}