#include<bits/stdc++.h> using namespace std; int main(){ int n,m,i,j,b,c,x,y,z,d; cin>>n>>m; int a[n][m]; for(i=0;i<n;i++){ for(j=0;j<m;j++){ cin>>a[i][j]; } } cin>>b>>c; for(i=0;i<n;i++){ for(j=0;j<m;j++){ if(a[i][j]==b){ x=i; y=j; } if(a[i][j]==c){ z=i; d=j; } } } if((x==z&&y-d==1)||(x==z&&d-y==1)||(y==d&&x-z==1)||(y==d&&z-x==1)){ cout<<"Y"; }else{ cout<<"N"; } } /************************************************************** Problem: 2000 User: lvrenxiang Language: C++ Result: Accepted Time:9 ms Memory:2072 kb ****************************************************************/