import java.io.*;
 
class Main
{
    public static void main(String args[]) throws IOException
    {
        BufferedReader dataIn = new BufferedReader(new InputStreamReader(System.in));
        String strInput;
	String strInput1;
 
        System.out.println("Do you like cookies?:");
        strInput = dataIn.readLine();  //reads data from console
try
{
 
	if ("y".equals(strInput))
        {
            System.out.println("Do you like chocolate?:");
            strInput = dataIn.readLine();  //reads data from console
	    if ("y".equals(strInput))
            {
                System.out.println("You must like Oreo cookies then");
            }
            else if ("n".equals(strInput))
            {
                System.out.println("If you don't like Chocolate, you must like peanut butter");
            }
            else
            {
        		throw new TheException(); //calls
            }
        }
 
	System.out.println("Do you like Milk?:");
	strInput1 = dataIn.readLine();  //reads data from console
 
	if ("y".equals(strInput1))
	{
	    System.out.println("Do you like Chocolate Milk?");
            strInput1 = dataIn.readLine();  //reads data from console
            if ("y".equals(strInput1))
            {
		System.out.println("Me and you both Pal, put er' their!!");
	    }
            else if ("n".equals(strInput1))
            {
                System.out.println("I don't Understand you, goodbye!!");
            }
            else
            {
        		throw new TheException(); //calls
            }
        }
	else if ("n".equals(strInput1))
        {
            System.out.println("Ok, so you don't like milk, your too picky!!!");
        }
 
		else
		{
		throw new TheException(); //calls
            	}
}
	catch (TheException e)
        {
            System.out.println("Illegal input caught, please enter a Y or N");
        }
 
        System.out.println();
        System.out.println("Program Ending!");
	}
    }
class TheException extends Exception
{
	public String toString()
	{
		return "Illegal";
	}
}

        if ("n".equals(strInput))
	System.out.println("Do you like Milk?:");
	strInput1 = dataIn.readLine();  //reads data from console