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#include <stdio.h>
#include <stdlib.h>

int main()
{
  int a,n,suma=0,banknot,niepmin=1001;

  scanf("%d",&n);
  for (a=1; a<=n; a++)
  {
      scanf("%d",&banknot);
      suma+=banknot;
      if ((banknot%2!=0)&&(banknot<niepmin))
        niepmin=banknot;
  }
  if (suma%2!=0) suma-=niepmin;
  if (suma>0) printf("%d",suma);
    else printf("NIESTETY");
  return 0;
}