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#include <cstdio>

int main ()
{
    int n;
    int m = 100000000;
    int ans = 0;
    scanf ("%d", &n);
    for (int i = 0; i < n; ++ i)
    {
        int tmp;
        scanf ("%d", &tmp);
        ans += tmp;
        if (tmp % 2 && tmp < m)
            m = tmp;
    }
    if (m < 100000000)
        ans -= m;
    if (ans == 0)
        printf ("NIESTETY\n");
    else
        printf ("%d\n", ans);
    return 0;
}