#include <iostream>
#include <cmath>
using namespace std;
 
 
double f(double x)
{
    return x * x - 2.0 * x - 2.0 * cos(x);
}
 
 
int main()
{
    int quantity = 0;
    double a, b, c, epsilon = 0.00189;
    cin >> a >> b;
 
 
    while (fabs(b - a) > epsilon)
    {
        quantity++;
        c = (a + b) / 2;
 
		cout<<f(a)<<" "<<f(c)<<" "<<f(b)<< " [a,b]=";
        if (f(a) < f(c))
        {
            b = c;
        }
        else
        {
            a = c;
        }
        cout<<a<<" "<<b<<endl;
    }
 
 
    double x_min = (b + a) / 2;
    cout << "Локальний мінімум: " << x_min << endl;
    cout << "Кількість ітерацій: " << quantity << endl;
    return 0;
}

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