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#include <cstdio>

int a, n, x;
int mina = 9999;

int main() {
  scanf("%d", &n);
  while (n--) {
    scanf("%d", &a);
    x += a;
    if ((a % 2 == 1) && (a < mina)) {
      mina = a;
    }
  }
  if (mina < 9999) {
    x -= mina;
  }
  if (x > 0) {
    printf("%d\n", x);
  } else {
    printf("NIESTETY\n");
  }
  return 0;
}