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#include<cstdio>

int main() {
    int n;
    scanf("%d",&n);
    int sum=0; int min_np=1001; int num_np=0;
    for(int i=0; i<n; ++i) {
        int a;
        scanf("%d",&a);
        sum+=a;
        if(a%2==1) {
            num_np++;
            if(min_np > a) min_np=a;
        }
    }
    if(num_np%2==1) sum-=min_np;
    if(sum > 0) printf("%d\n",sum);
    else printf("%s\n","NIESTETY");

    return 0;
}