#include <bits/stdc++.h>
using namespace std;
using pi = pair<int, int>;

signed main() {
    int v, d;
    cin >> v >> d;
    vector<vector<bool>> G(v, vector<bool>(v, false));
    for (int i = 0; i < v; ++i) {
        string s;
        cin >> s;
        for (int j = 0; j < v; ++j) if (s[j] == '1')
                G[i][j] = true;
    }

    bool valid = true;
    for (int src = 0; valid && src < v; ++src) {
        queue<pi> que;
        vector<bool> rchbl(v, false);
        que.push(pi(src, 0));
        while (!que.empty()) {
            pi q = que.front();
            que.pop();
            //cerr << q.second << "\n";
            if ((q.first == src && q.second > 0 && d % q.second == 0) || (q.first != src && d % (q.second * 3) == 0)) {
                rchbl[q.first] = true;
            }
            if(q.second>=d)continue;
            for (int i = 0; i < v; ++i) if (i!=q.first&&G[i][q.first])
                    que.push(pi(i, q.second + 1));
            if (G[q.first][q.first]) que.push(pi(q.first, q.second + 1));
        }
        for (auto&& i : rchbl)
            if (!i) {
                valid = false;
                break;
            }
    }
    cout << (valid ? "Yes" : ":(") << endl;
}