#include<bits/stdc++.h>
using namespace std;
int main()
{
	int i,j,n,m,t1,t2,t1i,t1j,t2i,t2j,a[205][205];
	cin >> n >> m;
	for(i = 1; i <= n; i++){
		for(j = 1; j <= m; j++){
			cin >> a[i][j];
		}
	}
	cin >> t1 >> t2;
	for(i = 1; i <= n; i++){
		for(j = 1; j <= m; j++){
			if(a[i][j] == t1){
				t1i = i;
				t1j = j;
			}
			if(a[i][j] == t2){
				t2i = i;
				t2j = j;
			}
		}
	}
	if((t1i-t2i == -1 || t1i-t2i == 1)&&(t1j-t2j == 0)||(t1j-t2j == -1||t1j-t2j == 1)&&(t1i-t2i == 0)){
		cout << "Y" << endl;
	}else{
		cout << "N" << endl;
	}
	return 0;
}