// k2.cpp : Defines the entry point for the console application.
//
//i//nclude <conio.h>
#include <iostream>
#include <cmath>
using namespace std;

void juuri1(float c){
  cout << sqrt(c) <<endl;
}

void juuri2(float& c){
  c=sqrt(c);
}

void juuri3(float* c){
  *c=sqrt(*c);
}


int main(int argc, char* argv[])
{
	float a, b;
	cout << "Hei" << endl ;
	cin >> a >> b;
	cout << (a+b) << endl;
    juuri1(a);
	juuri2(a);
	cout << a << endl;
	juuri3(&a);
	cout << a << endl;
   // getch();
	return 0;
}