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#include <algorithm>
#include <cstdio>

using namespace std;

int main() {
	int n;
	scanf("%d", &n);
	int sum = 0, min_odd = 1e7;
	for(int i = 0; i < n; i++) {
		int a;
		scanf("%d", &a);
		sum += a;
		if(a%2)
			min_odd = min(min_odd, a);
	}
	if(sum%2) {
		if(sum-min_odd == 0)
			puts("NIESTETY");
		else
			printf("%d\n", sum-min_odd);
	}
	else
		printf("%d\n", sum);
	return 0;
}