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#include <iostream>
using namespace std;

int main()
{
	ios_base::sync_with_stdio(false);
	int n, minNiep=100001, suma=0;
	cin>>n;
	for (int i=0; i<n; ++i)
	{
		int a;
		cin>>a;
		suma+=a;
		if (a&1)
			minNiep=min(minNiep, a);
	}
	if (suma&1)
		suma-=minNiep;
	if (suma) cout<<suma<<endl;
	else cout<<"NIESTETY"<<endl;
	return 0;
}