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#include <cstdio>

int main()
{
   int n;
   int nominal;
   int suma = 0;
   int ileNP = 0;
   int minNP = 1001;
   
   scanf("%d", &n);
   for(int j=1; j<=n; j++){
      scanf("%d", &nominal);
      suma += nominal;
      if (nominal&1)
      {
      	ileNP++;
      	if (nominal<minNP) minNP = nominal;
	  }
    }
    
	if (ileNP&1) suma -= minNP;
	if (suma>0) printf("%d", suma);
	else printf("NIESTETY\n");
	
   return 0;	
}