#include <stdio.h>
#include <stdlib.h>
#include<string.h>
typedef struct Node
{
      char Name[80], Phone[80], Email[80];
      struct Node *next;
      struct Node *prev;
} Node;
Node *head;
Node *tail;
Node* makeNode(char *s1, char* s2, char* s3)
{
      Node*p = (Node*)malloc(sizeof(Node));
      strcpy(p->Name,s1);
      strcpy(p->Phone,s2);
      strcpy(p->Email,s3);
      p->next = NULL;
      p->prev = NULL;
      return p;
}
void addNode(Node* p)
{
      if(head == NULL)
      {
            head = p;
            tail = p;
            return;
      }
      tail->next = p;
      p->prev = tail;
      p = tail;
}
void printfll(Node* p)
{
      while(p != NULL)
      {
            printf("%s %s %s\n", p->Name, p->Phone, p->Email);
            printfll(p->next);
      }
}
int main(){
      FILE *f;
      f = fopen("phonebook.txt", "r");
      if (f == NULL)
      {
            printf("ERROR");
      }
      else
      {
            char s1[80], s2[80], s3[80];
            do{
                  fscanf(f, "%s %s %s", s1, s2, s3);
                  Node* newNode = makeNode(s1,s2,s3);
                  addNode(newNode);
            }while(!feof(f));
      }
      printfll(head);
      return 0;
}