namespace AtCoder;

#nullable enable

using System.Numerics;

static class Extensions
{
    public static T[] Repeat<T>(this int time, Func<T> F) => Enumerable.Range(0, time).Select(_ => F()).ToArray();
}

class AtCoder
{
    object? Solve()
    {
        var n = Int();
        var m = Int();
        var sz = m.Repeat(() => Convert.ToUInt64(String(), 2));
        var sh = new HashSet<ulong>(sz);
        if (!sh.Contains((1UL << n) - 1)) return false;
        var andz = new HashSet<ulong>();
        foreach (var s1 in sz) foreach (var s2 in sz) andz.Add(s1 & s2);
        var sss = new HashSet<ulong>();
        sss.Add(0);
        foreach (var b in andz)
        {
            var nss = new HashSet<ulong>();
            foreach (var bs in sss)
            {
                nss.Add(bs);
                nss.Add(bs | b);
            }
            sss = nss;
        }
        foreach (var b in sss) if (!sh.Contains(b)) return false;
        return true;
    }

    public static void Main() => new AtCoder().Run();
    public void Run()
    {
        var res = Solve();
        if (res != null)
        {
            if (res is bool yes) res = yes ? "Yes" : "No";
            sw.WriteLine(res);
        }
        sw.Flush();
    }

    string[] input = Array.Empty<string>();
    int iter = 0;
    readonly StreamWriter sw = new(Console.OpenStandardOutput()) { AutoFlush = false };

    string String()
    {
        while (iter >= input.Length) (input, iter) = (Console.ReadLine()!.Trim().Split(' '), 0);
        return input[iter++];
    }
    T Input<T>() where T : IParsable<T> => T.Parse(String(), null);
    int Int() => Input<int>();
    void Out(object? x, string? separator = null)
    {
        separator ??= Environment.NewLine;
        if (x is System.Collections.IEnumerable obj and not string)
        {
            var firstLine = true;
            foreach (var item in obj)
            {
                if (!firstLine) sw.Write(separator);
                firstLine = false;
                sw.Write(item);
            }
        }
        else sw.Write(x);
        sw.WriteLine();
    }
}