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#include<iostream>
#include<cstdio>
int n,s, a,mi;
bool np=0;
using namespace std;
int main ()
{
    cin>>n;
    mi=1000;
    s=0;
    for(int i=0;i<n;i++)
    {
        scanf("%d", &a);
        s+=a;
        if(a%2!=0&&a<mi)
        {
            np=1;
            mi=a;
        }
    }
    if(s%2==0)cout<<s<<endl;
    else if(np==1&&n>1)cout<<s-a<<endl;
    else cout<<"NIESTETY"<<endl;
    return 0;
}