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#include <iostream>
#include <fstream>
#include <climits>

using namespace std;

int numbers = 0;
long sum = 0;
int lowestOdd = INT_MAX;
short value = 0;
int main(int argc, char * argv[]) {
	cin >>numbers;
	
	for (int i = 0; i< numbers; i++) {
		cin >> value;
		if (value%2==1 && lowestOdd > value) {
			lowestOdd = value;
		}
		sum += value;
	}
	
	if (sum%2 == 1 && sum - lowestOdd > 0){
		cout <<  sum - lowestOdd;
	} else if (sum%2 == 0) {
		cout << sum;
	} else {
		cout << "NIESTETY";
	}

}