#include <iostream>
#include <cstring>

using namespace std;

class Sphere
{
    private:
    double radius;
    public:
    Sphere(){}
    Sphere(double radius)
    {
        this->radius=radius;
    }
    ~Sphere(){}
    double volume()
   {
       return (this->radius*this->radius*this->radius)*((4/3)* 3,14);
   }
   double surface()
   {
        return (this->radius*this->radius)*(4*3,14);
   }
};
void info(Sphere sph) {
    cout << "volume: " << sph.volume() << " surface: " << sph.surface() << endl;
}
double smallestVolume(Sphere sph[], int n) {
    double min = 99999;
    int index = 1;

    for (int i=0; i<n; i++) {
        min = min > sph[i].volume() ? sph[i].volume() : min;
        index = i;
    }

     cout << "smallest volume: " << min << " " << &sph[index] << endl;
}

double smallestSurface(Sphere sph[], int n) {
    double min = 99999;
    int index = 1;

    for (int i=0; i<n; i++) {
        min = min > sph[i].surface() ? sph[i].surface() : min;
        index = i;
    }

    cout << "smallest surface: " << min << " " << &sph[index] << endl;
}


int main()
{
    int n;
    cin >> n;

    Sphere sph[n];
    for (int i=0; i<n; i++) {
        double radius;
        cin>>radius;
        sph[i]=Sphere(radius);
    }
    for (int i=0; i<n; i++) {
       info(sph[i]);
    }
    smallestVolume(sph,n);
    smallestSurface(sph,n);

   return 0;
}