#include "iostream"

using namespace std;

bool f (int x) {
    int a,b,c,d;
    a=x/1000;
    b=(x-a*1000)/100;
    c=(x-a*1000-b*100)/10;
    d=x%10;
    if(a+b==c+d) return true;
    else return false;}

int main () {
    int n;
    cin >> n;
    int *a=new int [n];
    for (int i=0;i<n;i++) {
        cin >> a[i];
        if (f(a[i])) cout << a[i] << " ";
    }
return 0;}