#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,m,a[205][105],i,j,w1,w2,q,Y,N;
	cin>>n>>m;
	for(i=0;i<n;i++){
	    for(j=0;j<m;j++){
	    	cin>>a[i][j];
	    }	
	}
	cin>>N>>Y;
	for(i=0;i<n;i++){
	    for(j=0;j<m;j++){
	        if(a[i][j]==q){
	           w1=i;
			   w2=j;	
	        }
	    
	    }
	}
	if(a[i+1][j]==q){
		cout<<"Y";
	}
	
	
}
/**************************************************************
	Problem: 2000
	User: lijinkai
	Language: C++
	Result: Wrong Answer
****************************************************************/