#include <iostream>

using namespace std;

double temp_C, temp_F;

// This assignment is worth 5 points.
// -1 if the initial input goes into an int.
// -1 if the output is stored in an int.
// This stops decimal values from being accepted, which is far from ideal
// in any kind of mathematical application.

int main()
{
	cout << "Enter temperature in F: ";
	cin >> temp_F;

	temp_C = 5.0/9*(temp_F - 32.0);

	cout << "Temperature in C is " << temp_C << endl;

	return 0;
}