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#include<cstdio>

int main()
{
    int n;
    int nparz = 0;
    int min = 1001;
    int sum = 0;
    int temp;
    scanf("%d", &n);
    for(int i = 0; i < n; i++)
    {
            scanf("%d", &temp);
            sum += temp;
            if (temp % 2 == 1)
            {
                      nparz++;
                      if (temp < min) min = temp;   
            }
    }
    if ((n == 1) && (nparz == 1)) printf("NIESTETY");
    else
    {
         if (nparz % 2 == 0) min = 0;
         printf("%d", (sum - min));
    }
    return 0;   
}