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#include <stdio.h>

int main(){

  int n;
  int s = 0;
  int m = 1001;
  int o = 0;

  scanf("%d", &n);

  while(n--){

    int b;
    scanf("%d", &b);

    s+=b;
    if(b%2){
      o= 1-o;
      if(b < m) m=b;
    }
  }

  if(s - o*m > 0) printf("%d", s - o*m);
  else printf("NIESTETY");
  return 0;

}