#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];
			if(x<10) cout<<x<<endl;
			if(10<=x&&x<100&&x%11==0) cout<<x<<endl;
			if(100<=x&&x<1000){
				if(x%10==x/100%10) cout<<x<<endl;
			}
			if(1000<=x&&x<10000){
				if(x%10==x/1000&&x/100%10==x/10%10) cout<<x<<endl;
			} 
		}
	}
	return 0;
}

/**************************************************************
	Problem: 1403
	User: panjinyan
	Language: C++
	Result: Accepted
	Time:17 ms
	Memory:2116 kb
****************************************************************/