import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class No00000597_Main2 {
	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	public static void main(String[] args) throws IOException {
		int n = Integer.parseInt(br.readLine());
		StringBuilder s = new StringBuilder();
		for(int i = 0; i < n; i++) {
			s.append(br.readLine());
		}
		System.out.println(s);
	}
}