typedef struct dList{
        struct dList *flink;
        struct dList *blink;
        int val;
} *dListe;



dListe delete(dListe entry)
{
  dListe elem;
  elem=entry;
  if(elem!=NULL){
    entry=elem->flink;
    if(entry!=NULL)
      entry->blink=NULL;
    free(elem);
  }
  return entry;
}