#include<iostream>
#include<cmath>
const double error=1e-7;
using namespace std ;
 // newton

double x,a;

double funct(double x){
	return x*x-3*x+2;
}

double functDiff(double x ){
	return 2*x-3 ;
}

int main(){

	cout<<"input a: " ;
	cin>> a ;

	int count = 1;
	double ans = funct(a);
	printf("%d\t%.10f %.10f \n",count,a,ans);
	do {
		a = a-( ans/functDiff(a) );
		ans = funct(a);
		count++;
		printf("%d\t%.10f %.10f \n",count,a,ans);
	}while(fabs(ans) > error);

	return 0 ;
}