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#include <cstdio>

using namespace std;

int main()
{
    int n, suma=0;
    short int a, minniep=1001;
    scanf ("%d", &n);
    for (int i=0; i<n; i++)
    {
        scanf ("%hd", &a);
        suma+=a;
        if (a%2&&a<minniep)
            minniep=a;
    }
    if (suma%2)
        if (n==1)
            printf ("NIESTETY");
        else
            printf ("%d", suma-minniep);
    else
        printf ("%d", suma);
    return 0;
}