row_of_memory* memory = NULL ;
    int i = 5;
    i = add_to_list(&memory, 123, 456);
    printf("the address is: %d\n", memory->address);
    printf("the code from add_to_list call: %i", i);
    i = add_to_list(&memory, 246, 864);
    printf("the code from add_to_list call: %i", i);
    printf("the other address is: %d\n", memory->next->address);