#include <iostream>
using namespace std;

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

  guess = n/2.0;
  for(count=0;count<5;count++){
    r = n/guess;
    guess = (guess+r)/2.0;
  }
  cout << "The answer is " << guess << endl;
  return 0;
}