#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); ++i)
#define srep(i,s,t) for (int i = s; i < t; ++i)
#define drep(i,n) for(int i = (n)-1; i >= 0; --i)
using namespace std;
typedef long long int ll;
typedef pair<int,int> P;
#define yn {puts("Yes");}else{puts("No");}
#define MAX_N 200005
const ll INF = 1001001001001001001;
int main() {
    srand((unsigned) time(NULL));
    clock_t start,end;
	start = clock();

	end = clock();
  	
    ll n, d;
    cin >> n >> d;
    int e[n][n];
    string s[n];
    rep(i,n) cin >> s[i];
    rep(i,n)rep(j,n) e[i][j] = s[i][j] - '0';

    

    int ok = 1;

    rep(i,n){
        ll odd[n], even[n];
        rep(j,n){
            odd[j] = INF;
            even[j] = INF;
        }
        even[i] = 0;
        queue<int> que;
        que.push(i);
        while(que.size()){
            int x = que.front() % n;
            int y = que.front() / n;
            que.pop();
            rep(j,n){
                if(e[x][j]){
                    if(y == 0){
                        if(odd[j] > even[x]+1){
                            odd[j] = even[x] + 1;
                            que.push(j+n);
                        }
                    }else{
                        if(even[j] > odd[x]+1){
                            even[j] = odd[x] + 1;
                            que.push(j);
                        }
                    }
                }
            }
        }
        if(d%2==0){
            rep(j,n){
                if(even[j] > d){
                    ok = 0;
                    break;
                }
            }
        }else{
            rep(j,n){
                if(odd[j] > d){
                    ok = 0;
                    break;
                }
            }
        }
        if(ok == 0) break;

        end = clock();
        if((double)(end-start)/CLOCKS_PER_SEC > 2.0) break;
    }

    if(ok) yn;
    return 0;
}