#include <iostream>
	using namespace std;
	int main( int argc, char *argv[])
{
	double x,x1 = 0;
	cout << "int to start: " << endl;
	cin >> x;
	//f(x) = x^2 - 3
	for(int i=1; i < 101; i++)
	{
		x1 = x - ((x*x-3)/(2*x));
		x=x1;
		cout << "approximation " << i << " x = " << x1 << endl;
	}
	return 0;
}