import java.io.*;

public class Hemisson{
	/**
	 *	Writes the given stirng to a file calles write.txt
	 */
	public static void write(String s){
		try {
			BufferedWriter out = new BufferedWriter(new FileWriter("write.txt",true));
			out.write(s+ "\n");
			out.close();
		} catch (IOException e) {
			System.out.println("File output error : " + e);
		}
		System.out.println(s);
	}
	
	/**
	 *	Reads from a file called read.txt
	 */
	public static String read(){
		String s = "";
		try{
			BufferedReader in = new BufferedReader(new FileReader("read.txt"));
			s = "" + in.readLine();
			in.close();
			BufferedWriter out = new BufferedWriter(new FileWriter("read.txt"));
			out.write("");
			out.close();
		} catch (IOException e){
			System.err.println("File input/output error : " + e);
		}
		return s;
	}
}