#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <cmath>
#include <iostream>
#include <functional>
double function_(double x) {
	return x*x-10*std::sin(x)*std::sin(x)+2 ;
}

double derivative(double x) {
	return  2*x-10*std::sin(2*x);
}


double NewtonsMethod(std::function<double(double x)> f, std::function<double(double x)> df, double xn, double eps) {
	double x1 = xn - f(xn) / df(xn);
	double x0 = xn;
	while (abs(x0 - x1) >= eps) {
		if (df(x1) == 0) break;
		x0 = x1;
		x1 = x1 - f(x1) / df(x1);
	}
	return x1;
}




int main() {
	const double A = -3;
	const double B = 2;
	double eps;
	std::cin >> eps;
	double h;
	std::cin >> h;
	for (double it = A; it <= B; it += h) {
		if (function_(it)*function_(it+h) < 0){
			std::cout << NewtonsMethod(function_, derivative, it, eps) << std::endl;
		}
	}
}