import java.io.*;
import java.util.*;

class FileJoin {

	public static void main(String [] args) {
		try {
			PrintWriter p = new PrintWriter(args[2]);
			Scanner one = new Scanner(new File(args[0]));
			Scanner two = new Scanner(new File(args[1]));


			while(one.hasNext()) {
				String input = one.next();
				p.print(input + " ");
			}
			one.close();
			while(two.hasNext()) {
				String input = two.next();
				p.print(input + " ");
			}
			two.close();
			p.close();
		}
		catch(Exception e) {
			e.printStackTrace();
		}

	}

}