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#include <iostream>

using namespace std;

int main()
{
    int n,suma=0,suma2=0;;
    cin>>n;

    int x,i=0,min=1000;;
    while(n--)
    {
        cin>>x;
        if(x%2==0)
            suma+=x;
        else
        {
            i++;
            suma2+=x;
            if(min>x)
                min=x;
        }
    }
    if(suma==0 && i==1){
        cout<<"NIESTETY"<<endl;
        return 0;}
    if(i%2==0)
        suma+=suma2;
    else
        suma+=suma2-min;
    cout<<suma<<endl;
    return 0;
}