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#include <bits/stdc++.h>
using namespace std;
int main()
{
    int n, a, min_odd=1e3+5, sum=0;
    scanf("%d", &n);
    for(int i=0; i<n; ++i)
    {
        scanf("%d", &a);
        sum+=a;
        if(a%2==1) min_odd=min(min_odd, a);
    }
    if(sum%2==0) printf("%d\n", sum);
    else if(sum==min_odd) printf("NIESTETY\n");
    else printf("%d\n", sum-min_odd);
    return 0;
}