Много бих бил благодарен ако някой може да ми каже защо следното сортиране не работи добре, едно към едно е от решението на упражненията, но не иска да сортира имената?

line = input()
sides = {}

while line != "Lumpawaroo":
    if " | " in line:
        args = line.split(" | ")
        side = args[0]
        user = args[1]
        # TODO If you receive forceSide | forceUser, you should check if such forceUser already exists, and if not, add him/her to the corresponding side
        if side not in sides:
            sides[side] = []

        all_values = []

        for current_list in sides.values():
            all_values += current_list

        if user not in all_values:
            sides[side].append(user)

    else:
        args = line.split(" -> ")
        user = args[0]
        side = args[1]
        old_side = ""

        for key, value in sides.items():
            if user in value:
                old_side = key
                break

        if old_side != "":
            sides[old_side].remove(user)

            if side not in sides:
                sides[side] = []

            sides[side].append(user)
        else:
            if side not in sides:
                sides[side] = []

            sides[side].append(user)

        print(f"{user} joins the {side} side!")

    line = input()

sides = dict(sorted(sides.items(), key=lambda x: (-len(x[1]), x[0])))

for side, users in sides.items():
    if len(users) == 0:
        continue

    print(f"Side: {side}, Members: {len(users)}")

    for user in users:
        print(f"! {user}")