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

public class Main {
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] sa = br.readLine().split(" ");
		int n = Integer.parseInt(sa[0]);
		int m = Integer.parseInt(sa[1]);
		int n2 = 1 << n;
		boolean[] b = new boolean[n2];
		for (int i = 0; i < m; i++) {
			int a = Integer.parseInt(br.readLine(), 2);
			b[a] = true;
		}
		br.close();

		int min = n + 1;
		int mini = -1;
		for (int i = 0; i < n2; i++) {
			if (b[i]) {
				int bc = Integer.bitCount(i);
				if (bc == min) {
					System.out.println("No");
					return;
				} else if (bc < min) {
					min = bc;
					mini = i;
				}
				if (b[n2 - 1 - i]) {
					System.out.println("No");
					return;
				}
			}
		}
		for (int i = 0; i < n2; i++) {
			if (b[i]) {
				int and = mini & i;
				if (!b[and]) {
					System.out.println("No");
					return;
				}
			} else {
				int and = mini & i;
				if (and == mini) {
					System.out.println("No");
					return;
				}
			}
		}
		System.out.println("Yes");
	}
}