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#include <iostream>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(0);
    int n, suma = 0, min_np = 10000, il_np = 0;
    int p;

    cin >> n;
    for (int i = 0; i < n; i++)
    {
        cin >> p;
        suma += p;

        if (p % 2 == 1)
        {
            il_np++;
            if (min_np > p)
                min_np = p;
        }
    }

    if (min_np == suma)
        cout << "NIESTETY";
    else
    {
        if (il_np % 2 == 1)
            suma -= min_np;
        cout << suma;
    }

    return 0;
}