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#include <iostream>
using namespace std;
int a, b, mn, s;
int main(){
	cin>>a;
	for(int i=0; i<a; i++){
		cin>>b;
		if(b%2==1){
			if(b<mn) mn=b;
			if(mn==0) mn=b;
		}
		s=s+b;
	}
	if(s%2==1){
		if(mn==s) cout<<"NIESTETY";
		else cout<<s-mn;
	}
	else cout<<s;
	return 0;
}