/* main.c */

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

#include "stack.h"

int main(int argc, char *argv[]) {
     stack *stk = NULL;
     push(7, &stk);
     push(2, &stk);
     push(9, &stk);
     push(12, &stk);
     push(88, &stk);
     printf("%d\n", pop(&stk));
     printf("%d\n", pop(&stk));
     printf("%d\n", pop(&stk));
     printf("%d\n", pop(&stk));
     printf("%d\n", pop(&stk));
     return 0;
}