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#include <iostream>
using namespace std;

int main() {
	long long int t, n, min = 1000, sum = 0;
	cin >> t;
	while(t--) {
		cin >> n;
		sum += n;
		if(n < min && n % 2 == 1) min = n;
	}

	if(sum % 2 == 1) {
		sum -= min;
	}

	if(sum == 0) cout << "NIESTETY";
	else cout << sum;

	return 0;
}