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#include<cstdio>

using namespace std;

int main()
{
    int a_i,min_odd=1001;// 1<=a_i<=1001
    int sum=0;
    bool is_odd=0;
    int N;

    scanf("%d",&N);
    while(N>0)
    {
        scanf("%d",&a_i);
        sum+=a_i;
        if(a_i%2==1)
        {
           is_odd=(is_odd+1)%2;
           if(a_i<min_odd)min_odd=a_i;
        }

        N--;
    }

    if(!is_odd) printf("%d",sum);
    else
    {
        if(min_odd==sum) printf("NIESTETY");
        else printf("%d",sum-min_odd);
    }


    return 0;
}