#include
using namespace std;

double CelsiusToKelvin(double valueCelsius) {
double valueKelvin;

valueKelvin = valueCelsius + 273.15;

return valueKelvin;
}

/* Your solution goes here */

int main() {
double valueC;
double valueK;

valueC = 10.0;
cout << valueC << " C is " << CelsiusToKelvin(valueC) << " K" << endl;

cin >> valueK;
cout << valueK << " is " << KelvinToCelsius(valueK) << " C" << endl;

return 0;
}