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#include <cstdio>

int main()
{
	int a, n, odds = 0, min_odd = 1001, sum = 0;

	scanf("%d", &n);
	for (int i = 0; i < n; i++) {
		scanf("%d", &a);
		sum += a;
		if (a % 2) {
			odds++;
			if (a < min_odd) {
				min_odd = a;
			}
		}
	}

	if ((n == 1) && (odds == 1)) {
		printf("NIESTETY\n");
	} else {
		if (odds % 2) {
			sum -= min_odd;
		}
		printf("%d\n", sum);
	}
}