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 );

    }

}