def print_plan(plan):
    if not plan:
        print("Desired state contains no records.")
        return

    for item in plan:
        h = item.desired.hostname
        if item.action == "ADD":
            print(f"{'ADD':<10} {h:<45} -> {item.desired.ip}")
        elif item.action == "UPDATE":
            print(f"{'UPDATE':<10} {h:<45} {item.current.ip} -> {item.desired.ip}")
        elif item.action == "SKIP":
            print(f"{'SKIP':<10} {h:<45} {item.reason}")
        else:
            print(f"{'UNCHANGED':<10} {h:<45} {item.desired.ip}")