#include<bits/stdc++.h>
using namespace std;
int n,m,a[100][100],x;
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: panjinyan
	Language: C++
	Result: Compile Error
****************************************************************/