import java.io.*;
import java.net.*;
import java.util.*;
public class MyClient {
    public static void main(String[] args) throws IOException {
        Socket sock = new Socket("127.0.0.1", 2343);
        InputStream in = sock.getInputStream();
        OutputStream out = sock.getOutputStream();
        String userInput = new Scanner(System.in).nextLine();
        StringBuffer result = new StringBuffer();
        for (char ch : userInput.toCharArray()) {
            out.write(ch);
            result.append((char)in.read());
        }
        System.out.println(result);
    }
}