#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()
using ll = long long;
constexpr int INF = 0x3f3f3f3f;
constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL;
constexpr double EPS = 1e-8;
constexpr int MOD = 1000000007;
// constexpr int MOD = 998244353;
constexpr int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1};
constexpr int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
  IOSetup() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << fixed << setprecision(20);
  }
} iosetup;

int main() {
  constexpr int N = 2000;
  int v; ll d; cin >> v >> d;
  chmin(d, N * 2);
  vector<bitset<N>> e(v, 0);
  REP(i, v) REP(j, v) {
    char eij; cin >> eij;
    if (eij == '1') e[i].set(j);
  }
  REP(s, v) {
    bitset<N> reach(0);
    reach.set(s);
    REP(_, d) {
      bitset<N> nx(0);
      for (int i = reach._Find_first(); i < v; i = reach._Find_next(i)) nx |= e[i];
      swap(reach, nx);
    }
    if (reach.count() < v) {
      cout << "No\n";
      return 0;
    }
  }
  cout << "Yes\n";
  return 0;
}