namespace AtCoder; #nullable enable using System.Numerics; static class Extensions { public static T[] Repeat(this int time, Func F) => Enumerable.Range(0, time).Select(_ => F()).ToArray(); } class ExtendedBitMatrix { public const int d = 64; ulong[] ML { get; init; } = new ulong[d]; ulong[] MR { get; init; } = new ulong[d]; static bool OfFlag(ulong x, int i) => ((x >> i) & 1) > 0; public ulong L(int i) => ML[i]; public ulong R(int i) => MR[i]; public void AddR(int i, ulong r) { MR[i] ^= r; } public bool L(int i, int j) => OfFlag(ML[i], j); public bool R(int i, int j) => OfFlag(MR[i], j); public void SetR(int i, int j, bool v) { var f = 1UL << j; if (v) MR[i] |= f; else MR[i] &= ~f; } public int Add(ulong l, ulong r) { (l, r) = Make(l, r); if (l == 0) return -1; var (ml, mr) = (ML, MR); for (var i = d - 1; i >= 0; i--) { if (!OfFlag(l, i)) continue; (ml[i], mr[i]) = (l, r); for (var j = 0; j < d; j++) { if (j == i || !OfFlag(ml[j], i)) continue; ml[j] ^= l; mr[j] ^= r; } return i; } return -1; } // try to make l with bases // return sum of rows on MR if possible public ulong? Make(ulong l) { var (nl, r) = Make(l, 0); return nl == 0 ? r : null; } (ulong, ulong) Make(ulong l, ulong r) { var (ml, mr) = (ML, MR); for (var i = d - 1; i >= 0; i--) { if (!OfFlag(l, i) || !OfFlag(ml[i], i)) continue; l ^= ml[i]; r ^= mr[i]; } return (l, r); } } class AtCoder { object? Solve() { var n = Int(); var m = Int(); var sz = m.Repeat(() => Convert.ToUInt64(String(), 2)); var sh = new HashSet(sz); if (!sh.Contains((1UL << n) - 1)) return false; var andz = new HashSet(); foreach (var s1 in sz) foreach (var s2 in sz) if (!sh.Contains(s1 & s1)) return false; var matrix = new ExtendedBitMatrix(); foreach (var s in sz) matrix.Add(s, 0); var sss = new HashSet(); sss.Add(0); for (var i = 0; i < 64; i++) { var b = matrix.L(i); if (b == 0) continue; var nss = new HashSet(); 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(); 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() where T : IParsable => T.Parse(String(), null); int Int() => Input(); 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(); } }