using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        double value=double.Parse(Console.ReadLine());

        char scale=char.Parse(Console.ReadLine());

        temprature t1=new temprature(value,scale);

        if(scale=='c')

        {

            t1.tofernhait();

            t1.print();

        }

        else

        {

            if(scale=='f')

            {

                t1.tocelsious();

                t1.print();

            }

    }

}

public class temprature

{

    private double value;

    private char scale;

    public temprature()

    {

        value=0;

        scale='c';

    }

    public temprature(char s)

    {

        value=0;

        scale=s;

    }

    public temprature(double v)

    {

        value=v;

        scale='c';

    }

    public temprature(double v,char s)

    {

        value=v;

        scale=s;

    }

    public void tocelsious()

    {

        value=(5.0/9.0)*(value-32);

        scale='c';

    }

    public void tofernhait()

    {

        value=(9.0/5.0)*value+32;

        scale='f';

    }

    public override string ToString()

    {

        return string.Format("{0}{1}",value,scale);

    } 

    public void print()

    {

        Console.WriteLine(this.ToString());

    }

}

}