#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    int x,y,ok=0;
    fstream f("date.in");
    fstream g("date.out");
    f>>x;
    while(f>>y)
    {
        if(x%2==0&&y%2==0)
        {
            ok=1;
            g<<x<<" "<<y<<endl;
        }
        x=y;
    }
    if(ok!=1)
         g<<"nu s elemente pare";
    f.close();
    g.close();
    return 0;
}