#include <iostream>
#include <cmath>
#include <cstdlib>

using namespace std;

class Polynomial
{
private:
    unsigned int degree;
    double* coefficients;
public:
    char a;
    Polynomial(unsigned int n);
    ~Polynomial();
    void setCoefficient(unsigned int i, double value);
    double getCoefficient(unsigned int i);
    double value(double x);
    friend ostream & operator<<(ostream & out, Polynomial & p)
        {
        out<<p.coefficients[p.degree]<<"x^"<<p.degree;
        for(int k=p.degree-1;k>=0;k--)
            {
            if (k==1)
                {
                if(p.coefficients[k]>0)
                    out<<"+";
                if (p.coefficients[k]!=0)
                    {
                    out<<p.coefficients[k];
                    out<<"x";
                    }
                }
            else if(k==0)
               {
                if (p.coefficients[k]!=0)
                    {
                    if(p.coefficients[k]>0)
                        out<<"+";
                    out<<p.coefficients[k];
                    }
                else out<<"";
                }
            else{

                if (p.coefficients[k]!=0)
                    {
                    if(p.coefficients[k]>0)
                        out<<"+";
                    out<<p.coefficients[k]<<"x^"<<k;
                    }
                }
            }
        }
};