#include<new.h>
#include<stdio.h>
#include<conio.h>
#include<ctype.h>
typedef struct nod
       {
	int inf;
	nod *urm;};
 nod *fr,*p,*vf;
 char c;
 void adaugare(void)
 {
   p=new(nod);
   printf("Dati informatia:");
   scanf("%d",&p->inf);
   p->urm=NULL;
   if (fr==NULL){
       vf=p;fr=p;}
   else
     {
       vf->urm=p;
       vf=p;
      }
     }
 void extragere(void)
 {
   p=fr;
   if (fr==NULL)
      printf("coada vida!\n");
   else
     {
      fr=p->urm;
      delete p;
      }
  }
 void listare(void)
 {
   p=fr;
   if (fr==NULL)
      printf("coada vida!\n");
   else
     {
      printf("coada:");
      do
      {
	printf("%d ",p->inf);
	p=p->urm;
       }while(p!=NULL);
       printf("\n");
     }
 }

 void main()
 {
   do{
      printf("Ce operatie doriti?(A,E,L,X):");
      scanf("%c",&c);
      c=toupper(c);
      switch(c)
	 {
	  case 'A':adaugare();break;
	  case 'E':extragere();break;
	  case 'L':listare();
	  }
      } while (c!='X');

}