/**
 *  Vladimir Vacic, Betul Buyukkurt
 *  Computer Science and Engineering Department
 *  University of California, Riverside
 *
 *  CS152 - Compiler Construction
 *
 *
 *
 *  If you are not solving the extra credit error handling, you
 *  can skip this note:
 *
 *  But if you are, you probably do not want to catch some of the 
 *  exceptions here, but rather somewhere else. :)
 *
 */

import java.io.*;


public class Input  {

    public static Integer getDigit()  {
        try  {
	    InputStreamReader in = new InputStreamReader(System.in);
	    Integer userInput = new Integer(Character.digit(in.read(), 10));
	    return userInput;
	}
        catch(NumberFormatException e) {}
        catch(IOException e)  {}

        return new Integer(0);
    }

    public static Integer getInt()  {
        try  {
            BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
            Integer userInput = new Integer(in.readLine());
	    return userInput;
	}
        catch(NumberFormatException e)  {}
        catch(IOException e)  {}

	return new Integer(0);
    }
}