import java.io.*;
 
public class CelsiusKelvinViceversa {
 
	public static void main (String args[]) {	
		InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader (isr);
        try
        {	
		System.out.println("Bienvenido a Celsius To Kelvin y viceversa by Erik");
		System.out.println("Que deseas hacer: ");
		System.out.println("1.Celsius to Kelvins");
		System.out.print("2.Kelvins to Celsius: ");
		int opc = Integer.parseInt(br.readLine());
		if(opc==1){
			System.out.print("Introduce los Celsius a convertir: ");
		double g = Double.parseDouble(br.readLine());
		double ck = g + 273.15;
		System.out.println("Celsius To Kelvin: " + ck);
	}
	if(opc==2){
		System.out.print("Introduce los Kelvins a convertir: ");
		double g = Double.parseDouble(br.readLine());
		double kc = g - 273.15;
		System.out.println("Kelvin To Celsius: " + kc);
	}
}
	catch (Exception exp)
        {
            exp.printStackTrace();
        }
	}
}