#include <bits/stdc++.h>
using namespace std;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<bool> tb(1 << n), dp(1 << n);
    vector<int> a(m);
    bitset<16> tmp;
    dp[0] = true;
    for(auto &&v : a){
        cin >> tmp;
        v = tmp.to_ullong();
        tb[v] = dp[v] = true;
    }
    for(int S = 1; S < dp.size(); S++){
        for(int U = S; U > 0 && !dp[S]; U = (U - 1) & S){
            if(dp[U] & dp[U ^ S]) dp[S] = true;
        }
    }
    for(int i = 0; i < n; i++){
        for(int j = 0; j < i; j++){
            if(!tb[a[i] & a[j]]){
                cout << "No\n";
                exit(0);
            }
        }
    }
    cout << (dp == tb && tb.back() ? "Yes" : "No") << '\n';
}