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#include <iostream>
using namespace std;
int ilosc, nominal[10000013], suma, mini=1013;

int main()
{
    cin >> ilosc;

    for (int i=0 ; i<ilosc ; i++)
        {
         cin  >> nominal[i];
         suma+=nominal[i];
         if ( nominal[i]<mini && nominal[i]%2==1 )mini=nominal[i];
        }

    if ( suma%2==0 ) cout<<suma; else if(suma-mini!=0) cout<<suma-mini; else cout<<"NIESTETY";

}