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#include <iostream>

using namespace std;

int main()
{
    long long int n,w=0,w2=0,a,minn=1000000,k=0;
    cin>>n;
    for(long long int i=0; i<n; i++)
    {
        cin>>a;
        if(a%2==0)w=w+a;
        else
        {
            w2=w2+a;
            minn=min(minn,a);
            k++;
        }
    }
    if(k%2==0)w=w+w2;
    else w=w+w2-minn;
    if(w==0)cout<<"NIESTETY";
    else cout<<w;

        return 0;
}