#include <iostream>
using namespace std;

int main()
{
  int n;
  double r,guess;
  cout << "Number to compute the square root? ";
  cin >> n;

  guess = n/2.0;
  r = n/guess;
  guess = (guess+r)/2.0;
  r = n/guess;
  guess = (guess+r)/2.0;
  r = n/guess;
  guess = (guess+r)/2.0;
  r = n/guess;
  guess = (guess+r)/2.0;
  r = n/guess;
  guess = (guess+r)/2.0;
  cout << "The answer is " << guess << endl;
  return 0;
}