import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws Exception {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		sc.close();

		StringBuilder sb = new StringBuilder("01");
		for (int i = 0; i < n; i++) {
			sb.append('0');
		}
		System.out.println(sb.toString());
	}
}