#include <iostream.h>


//#define CONSTANT1 32
//#define CONSTANT2 5/9

const int CONSTANT1 = 32;
const double CONSTANT2 = 0.555555555;


// main function
void main ()
{
  
	double Celcius; 
	double Fahrenheit;

    cout << "Enter the temperature in Fahrenheit" << endl;
	cin >> Fahrenheit;

    
	Celcius = (Fahrenheit-CONSTANT1)*CONSTANT2;

	cout << "Temperature in Celcius is " <<  Celcius << endl; 

	//endl;


	

  
}