#include<iostream>
#include<iomanip>
#include<fstream>
#include <vector>
#include <string>
using namespace std;

template <class T>
class Polynom
{
public:
    int n;
    T *koef;
    Polynom();
    Polynom(int an);
    Polynom(const Polynom &);
    ~Polynom();
    int getn();
    double sum();
    double getkoef(int);
    Polynom operator+(const Polynom &);
    Polynom operator-(const Polynom &);
    Polynom operator*(const Polynom &);
    Polynom operator=(const Polynom &);
    void print();
    friend ostream &operator<<<T>(ostream &s, const Polynom &c);
    double &operator()(int i)
    {
        return koef[i];
    }
};