using System;
public class Program
{
public static void Main()
//program prebere celzije in izpiše kelvine
string celziji;
double kelvin;
double celzijiVDouble;
Console.WriteLine("Vnesi celzije");
celziji = Console.ReadLine();
celzijiVDouble = double.Parse(celziji);
kelvin = celzijiVDouble - 273;
Console.WriteLine( kelvin );
}