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#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
using namespace std;
int main(){
vector<int> b;
int N;
cin>>N;
for(int i=0;i<N;++i){
int a; cin>>a; b.push_back(a);}
long long sum=accumulate(b.begin(),b.end(),0);
long long m=0;
if(sum%2){
int x=1001; 
for(int i=0;i<N;++i){if(b[i]<x && b[i]%2)x=b[i];}
m=sum-x;
}
else m=sum;

if(m)
cout<<m<<endl;
else
cout<<"NIESTETY"<<endl;
}