import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int n = Integer.parseInt(br.readLine());
		br.close();

		List<Integer> list = new ArrayList<>();
		while (n > 0) {
			int n2 = (int) Math.sqrt(n);
			list.add(n2);
			n -= n2 * n2;
		}

		StringBuilder sb = new StringBuilder();
		for (int i = list.size() - 1; i >= 0; i--) {
			if (list.get(i) % 2 == 1) {
				sb.append(make(list.get(i), 0));
			}
		}

		int start = 0;
		for (int i = 0; i < list.size(); i++) {
			if (list.get(i) % 2 == 0) {
				sb.append(make(list.get(i), start));
				start ^= 1;
			}
		}
		System.out.println(sb.toString());
	}

	static String make(int len, int start) {
		StringBuilder sb = new StringBuilder();
		int s1 = start;
		int s2 = start ^ 1;
		for (int i = 0; i < len / 2; i++) {
			sb.append(s1).append(s2);
		}
		if (len % 2 == 1) {
			sb.append(s1);
		}
		return sb.toString();
	}
}