#include<bits/stdc++.h>
using namespace std;
int n,m,a[100][100],x,s;
int main(){
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
            x=a[i][j];
            while(a[i][j]!=0){
                s=s*10+a[i][j]%10;
                a[i][j]=a[i][j]/10;
            }
            if(s==x) cout<<x<<endl;
            s=0;
        }
    }
    return 0;
}
  
/**************************************************************
	Problem: 1403
	User: wangyiyang
	Language: C++
	Result: Accepted
	Time:21 ms
	Memory:2112 kb
****************************************************************/