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#include <iostream>
using namespace std;

int main()
{
    int n;
    int sum=0;
    int minimum=5000;
    cin >> n;
    for(int i=0; i<n; i++)
    {
        int x;
        cin >> x;
        sum+=x;
        if(x%2==1 && x<minimum)
        {
            minimum = x;
        }
    }
    if(n==1 && sum%2==1)
        cout << "NIESTETY";
    else if(sum%2==0)
        cout << sum;
    else
        cout << sum-minimum;
    return 0;
}