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#include <iostream>

using namespace std;

int main()
{
    long long n, a, k=0, min=1001;
    cin>>n;
    do{
     cin>>a;
     k+=a;
     if(a%2 && a<min)
         min = a;
    }while(--n);

    if(!(k%2))
        cout<<k<<endl;
    else if(min!=1001)
    {
        k -= min;
        if(k>0)
            cout<<k<<endl;
        else
            cout<<"NIESTETY"<<endl;
    }
    return 0;
}