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#include <cstdio>
#include <cstdlib>
#include <string>
using namespace std;

int main() {
  int n;
  scanf("%d", &n);

  int sum = 0;
  int smallest_odd = 1001;
  for (int i = 0; i < n; i++) {
    int a;
    scanf("%d", &a);
    sum += a;
    if (((a % 2) == 1) && (a < smallest_odd)) {
      smallest_odd = a;
    }
  }

  if ((sum % 2) == 0) {
    printf("%d\n", sum);
  } else if (sum - smallest_odd > 0) {
    printf("%d\n", sum - smallest_odd);
  } else {
    printf("NIESTETY\n");
  }
  
  return 0;
}