typedef struct List {
  
  struct List *next;
  
}* Liste;


Liste insert(Liste x){
  Liste y,p,t;
  
  if(x==NULL){
    y=malloc(sizeof(struct List));
    y->next=NULL;
    x=y;
  }
  else{
    if(any){
      y=malloc(sizeof(struct List));
      y->next=x;
      x=y;
    }
    else{
      p=x;
      t=x->next;
      while(any){
	if(t!=NULL){
	  p=t;
	  t=t->next;
	}
      }
      
      y=malloc(sizeof(struct List));
      p->next=y;
      y->next=t;
           
    }
  }
  return x;
}