#include <iostream>
    #include <cstdio>
    using namespace std;

    double n;

    double SumRes(double X, double n)
    {
            double Xnext = 4, Xcur, y = 4;
        n += 4;
            for (double i = 4; i <= n ; i++)
            {
                    Xcur = Xnext;
                    Xnext = (Xcur * (i+1) * X) / i;
                    y += Xcur;
            }
            return y;
    }

    double GornerSc(double X, double n)
    {
            double y = n+4;
            for (int i = n+3; i >= 4; i--)
            {
                    y *= X;
                    y += i;
            }
    }

    int main()
    {
            double Xo=0, Xn = 3, dX = 0;
            int k;
            cin>>n;
            for (int i = 0; i <= 10; i ++)
            {
                    cout<<"1.Sum method"<<endl;
                    cout<<"2.Gorner scheme"<<endl;
                    cin>>k;
                    switch (k)
                    {
                case 1: SumRes(Xo, n); break;
                case 2: GornerSc(Xo, n); break;
                default: cout<<"Unknown command. Repeat."<<endl;
                    }
                    Xo += dX;
            }
            return 0;
    }