import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.ArrayList;
import java.util.Scanner;
public class Main {
    public static ArrayList<Double> xn = new ArrayList<>();
    public static ArrayList<Double> absXn = new ArrayList<>();
    public static ArrayList<BigDecimal> absXn1 = new ArrayList<>();
    public static double eps = 0;
    public static int rd = 0;
    public static int n = 0;
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        eps = sc.nextDouble();
        rd = rd(eps);
        double x = sc.nextDouble();
        xn.add(x);
        x =sc.nextDouble();
        xn.add(x);
        int k = 0;
        System.out.println("k\tXn\t\t|Xn-Xn-1|");
        for(int i = 0;i<100;i++){
            boolean f = false;
            if(i!=0) {
                if (i == 1) {
                    f = true;
                    absXn.add(Math.abs(xn.get(i)- xn.get(0)));
                } else {
                    double s = iteration(xn.get(i- 2), xn.get(i- 1));
                    BigDecimal rounded = new BigDecimal(s).setScale(rd,
                            RoundingMode.HALF_UP);
                    xn.add(Double.parseDouble(String.valueOf(rounded)));
                    s = Math.abs(xn.get(i)- xn.get(i- 1));
                    if(Math.abs(s) >= 0.001) {
                        f = true;
                        rounded = new BigDecimal(s).setScale(rd,
                                RoundingMode.HALF_UP);
                        absXn.add(Double.parseDouble(String.valueOf(rounded)));
                    }else{
                        rounded = new BigDecimal(s).setScale(rd+1,
                                RoundingMode.HALF_UP);
                        absXn1.add(rounded);
                        k++;
                    }
                }
            }
            if (i == 0) {
                System.out.println(i + "\t" + xn.get(i));
            } else {
                if(f) {
                    System.out.println(i + "\t" + xn.get(i) + " \t" + absXn.get(i- 1));
                }else {
                    System.out.println(i + "\t" + xn.get(i) + "\t" + absXn1.get(k-1));
                }
            }
            if (i != 0) {
                if(f) {
                    if (absXn.get(i- 1) <= eps) {
                        n =i-1;
                        break;
                    }
                }else {
                    BigDecimal r = new BigDecimal(eps);
                    if (r.compareTo(absXn1.get(k-1))==1) {
                        n =i-1;
                        break;
                    }
                }
            }
        }
        System.out.println("x* = " + xn.get(n));
    }
    public static double func(double x){
        return Math.exp(-0.5*Math.pow(x,2.0))-Math.pow(x, 3.0) + 0.2;
    }
    public static double iteration(Double x1, Double x2){
        return x1- (func(x1)/(func(x2)-func(x1))) * (x2-x1);
    }
    public static int rd(double e){
        int k = 0;
        while(e > 0 && e < 1){
            e *= 10;
            k++;
        }
        return k;
    }

}