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#include <iostream>
using namespace std;

bool is_odd( int n )
{
	return (n % 2) == 1;
}

int main()
{
	ios_base::sync_with_stdio( false );
	int cnt = 0; cin >> cnt;

	int sum = 0;
	int min_odd = 1001;
	int num_odd = 0;

	for( int i = 0; i < cnt; ++i ) {
		int banknote = 0; cin >> banknote;
		if( is_odd( banknote ) ) {
			num_odd += 1;
			min_odd = min( min_odd, banknote );
		}
		sum  += banknote;
	}

	if( is_odd( num_odd ) ) {
		sum -= min_odd;
	}

	if( sum ) {
		cout << sum << "\n";
	}
	else {
		cout << "NIESTETY\n";
	}
}