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#include <cstdio>

using namespace std;

int main()
{
    int n;
    scanf("%d", &n);
    int sump = 0;
    int sumnp = 0;
    int minnp = 123456789;
    for (int i = 0; i < n; i++)
    {
        int x;
        scanf("%d", &x);
        if (x % 2 == 0) sump += x;
        else
        {
            sumnp += x;
            if (x < minnp) minnp = x;
        }
    }

    if (sumnp % 2 == 1)
    {
        if (sump + sumnp - minnp == 0)
            printf("NIESTETY");
        else printf("%d", sump + sumnp - minnp);
    }
    else printf("%d", sump + sumnp);
}