---

#include <iostream>
#include <fstream>
#include <vector>
#include <cmath>

using namespace std;

double roundNumber(double value) {
    return round(value * 1000.0) / 1000.0;
}

double powerAccumMethod(vector<double>& coeffs, double x) {
    double total = 0.0;
    double power = 1.0;
    int n = coeffs.size();

    for (int i = n - 1; i >= 0; i--) {
        total += coeffs[i] * power;
        power *= x;
    }

    return total;
}

double hornerMethod(vector<double>& coeffs, double x) {
    double result = coeffs[0];

    for (int i = 1; i < coeffs.size(); i++) {
        result = result * x + coeffs[i];
    }

    return result;
}

int main() {
    setlocale(LC_ALL, "ru");

    ifstream dataFile("data.txt");
    vector<double> coeffs;

    double temp;

    while (dataFile >> temp) {
        coeffs.push_back(temp);
    }

    dataFile.close();

    const double X_START = 0.5;
    const double X_END = 2.0;
    const double H = 0.25;

    for (double x = X_START; x <= X_END + 0.01; x += H) {
        double resPow = roundNumber(powerAccumMethod(coeffs, x));
        double resHorner = roundNumber(hornerMethod(coeffs, x));

        cout << resPow << "\t";
        cout << resHorner << endl;
    }

    return 0;
}

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