#include <stdio.h>
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000000



int main(){
	
	int V;
	cin>>V;
	
	long long D;
	cin>>D;
	
	if(D>Inf){
		D = Inf + (D&1);
		D -= 10;
	}
	
	
	vector<string> S(V);
	rep(i,V)cin>>S[i];
	
	vector<int> remain(V);
	rep(i,V){
		remain[i] = i;
	}
	mt19937 rnd(chrono::duration_cast<chrono::nanoseconds>(chrono::high_resolution_clock::now().time_since_epoch()).count());
	auto start = chrono::system_clock::now();
	while(remain.size()>0){
		if(chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now() - start).count() > 2800){
			//break;
		}
		
		int ind = rnd() % remain.size();

		vector<int> d(V*2,Inf);
		queue<int> Q;
		Q.push(remain[ind]*2);
		while(Q.size()>0){
			int u = Q.front()>>1;
			int b = Q.front()&1;
			Q.pop();
			rep(i,V){
				if(S[u][i]=='0')continue;
				int v = i;
				int nb = b^1;
				if(d[v*2+nb]!=Inf)continue;
				int t = d[u*2+b];
				if(t==Inf)t = 0;
				d[v*2+nb] = t+1;
				Q.push(v*2+nb);
			}
		}
		
		bool f = true;
		rep(i,V){
			if(d[i*2+(D&1)]>D){
				f=false;
				break;
			}
		}
		if(!f)break;
		
		vector<bool> ok(V,false);
		ok[remain[ind]] = true;
		
		rep(i,V){
			bool F = true;
			rep(j,V){
				bool F2 = false;
				rep(k,2){
					int x = i*2 + k,y = j*2 + (k^(D&1));
					if(d[x]+d[y]<=D){
						F2 = true;
						break;
					}
				}
				if(!F2){
					F=false;
					break;
				}
			}
			if(F)ok[i] = true;
		}
		
		vector<int> nr;
		rep(i,remain.size()){
			if(!ok[remain[i]])nr.push_back(remain[i]);
		}
		swap(remain,nr);
		
	}
	if(remain.size()==0)cout<<"Yes"<<endl;
	else cout<<"No"<<endl;
	
    return 0;
}