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#include<iostream>
using namespace std;

int main( ){
    ios_base::sync_with_stdio(0);
    int n, k, min=1000, sum=0;
    cin >> n;
    for(int i=1; i<=n; i++){
      cin >> k;
      if(k%2!=0 && k<min){
	min=k;
      }
      sum = (sum+k);
    }
    if(sum%2!=0){
      if(sum==min){
	cout<<"NIESTETY\n";
      }
      else
	cout<<sum-min<<endl;
    }
      else{
	cout<<sum<<endl;
    }
    return 0;
}