class Auth:
    @staticmethod
    def opencup():
        return {'login': '', 'password' : ''}

    @staticmethod
    def yandexcontest():
        return {'login': '', 'password' : ''}

    @staticmethod
    def atcoder():
        return {'login': '', 'password' : ''}

    @staticmethod
    def hackerrank():
        return {'login': '', 'password' : ''}