import java.net.*;
import java.io.*;

class RegExp 
{
	public static boolean match(String string, String pattern) {
		try
		{
			Socket s = new Socket("localhost", 3000);
			BufferedReader in =  new BufferedReader(new	InputStreamReader(s.getInputStream()));
			PrintWriter out = new PrintWriter(new BufferedOutputStream(s.getOutputStream()), true);
			out.println(new String("match"));
			out.println(string);
			out.println(pattern);
			String data = in.readLine();
			if (data.equals("1"))
			{
				return true;
			} else {
				return false;
			}
		}
		catch (IOException e)
		{
			System.out.print(e);
			return false;
		}
	}

	public static String substitute(String string, String pattern, String replacement) {
		try
		{
			Socket s = new Socket("localhost", 3000);
			BufferedReader in =  new BufferedReader(new	InputStreamReader(s.getInputStream()));
			PrintWriter out = new PrintWriter(new BufferedOutputStream(s.getOutputStream()), true);
			out.println(new String("substitute"));
			out.println(string);
			out.println(pattern);
			out.println(replacement);
			String data = in.readLine();
			return data;
		}
		catch (IOException e)
		{
			System.out.print(e);
			return null;
		}
	}

}