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

typedef struct pallet{
    int id;
    int alturapallet;
    int fecha;
    struct pallet *sig;
    struct pallet *ant;
} tPallet;


typedef struct {
    tPallet *head;
    tPallet *tail;
    tPallet *curr;
    unsigned int listSize;
    unsigned int pos;
} tLista;

void initList (tLista *B){
    B->curr=(tPallet *)malloc(sizeof(tPallet));
    B->head=B->curr;
    B->head=B->tail;
    B->listSize=0;
    B->pos=0;
}

void insert (tLista*B, int valor){
    tPallet *aux = B->curr->sig;
    B->curr->sig=(tPallet *)malloc(sizeof(tPallet));
    B->curr->sig->id=valor;
    B->curr->sig->sig=aux;
    if(B->curr==B->tail) B->tail = B->curr->sig;
    B->listSize++;
}

int main(){
    tLista *B=(tLista *)malloc(sizeof(tLista));
    initList(B);
    insert(B,9);
    printf("%d",B->curr->sig->id);
    return 0;
}