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#include <cstdio>

int main()
{
    long long n, a, sum, minOdd;
    sum = 0;
    minOdd = 1001;
    scanf("%lld", &n);
    while(n--)
    {
        scanf("%lld", &a);
        if(a%2 && a < minOdd)
            minOdd = a;
        sum += a;
    }
    if(sum%2)
        sum -= minOdd;
    if(sum == 0)
        printf("NIESTETY\n");
    else
        printf("%lld\n", sum);

    return 0;

}