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

typedef struct _Node { // 12+ bytes
    int value;          // 4 bytes
    struct _Node* next; // 8 bytes
} Node;

#define log_int(n) printf("%s == %d\n", #n, n)

int main(int argc, char* argv[]) {
    Node* head = NULL;

    Node* new_node = malloc(sizeof(*new_node));
    *new_node = (Node) { .value = 1, .next = NULL };
    head = new_node;

    new_node = malloc(sizeof(*new_node));
    *new_node = (Node) { .value = 2, .next = NULL };
    head->next = new_node;

    new_node = malloc(sizeof(*new_node));
    *new_node = (Node) { .value = 3, .next = NULL };
    head->next->next = new_node;

    log_int(head->value);
    log_int(head->next->value);
    log_int(head->next->next->value);
    Node* node = head;
    log_int(node->value);
    node = node->next;
    log_int(node->value);
    node = node->next;
    log_int(node->value);
    
    free(head->next->next);
    free(head->next);
    free(head);

    return EXIT_SUCCESS;
}
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