import java.io.*;
public class Main {

    public static void main(String[] args) {
        try {
            FileInputStream in = new FileInputStream("in.txt");
            int x = in.read();
            System.out.write(x);
            x = in.read();
            System.out.write(x);

        }
        catch (IOException ex) {
            System.out.println(ex);
        }
    System.out.flush();
    }
}