#include<bits/stdc++.h>
using namespace std;
int a[105][105],v[105][105],n,ax,ay,bx,by,ans;
int fx[4]={1,-1,0,0};
int fy[4]={0,0,1,-1};
void ss(int x,int y){
	v[x][y]=1;
	for(int i=0;i<4;i++){
		int tx=x+fx[i];
		int ty=y+fy[i];
		if(tx>=1&&tx<=n&&ty>=1&&ty<=n&&a[tx][ty]==0&&v[tx][ty]==0){
			if(tx==bx&&ty==by){
				ans=1;
				return;
			}
			v[tx][ty]=1;
			ss(tx,ty);
		}
	}
}
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++){
			cin>>a[i][j];
		}
	}
	cin>>ax>>ay>>bx>>by;
	if(a[ax][ay]||a[bx][by]) cout<<"NO";
	else {
		ss(ax,ay);
		if(ans) cout<<"YES";
		else cout<<"NO";	
	}
	return 0;
}

/**************************************************************
	Problem: 1430
	User: zzz
	Language: C++
	Result: Accepted
	Time:18 ms
	Memory:2160 kb
****************************************************************/