03. Team Lineup

def team_lineup(*args):
    countries = {}
    for player, country in args:
        if country not in countries:
            countries[country] = []
        countries[country].append(player)

    result = ""
    for country, players in sorted(countries.items(), key=lambda item: (-len(item[1]), item[0])):
        result += f"{country}:\n"
        for player in players:
            result += f"  -{player}\n"

    return result