def add_strength(event_dict, home_players, away_players):
    """
    Get strength for event -> It's home then away
    
    :param event_dict: dict of event info
    :param home_players: list of players for home team
    :param away_players: list of players for away team
    
    :return: None
    """
    try:
        home_skaters = event_dict['Home_Players'] - 1 if event_dict[
            'Home_Goalie'] != '' else len(home_players)
        away_skaters = event_dict['Away_Players'] - 1 if event_dict[
            'Away_Goalie'] != '' else len(away_players)
    except KeyError:
        home_skaters = 0
        away_skaters = 0
    event_dict['Strength'] = 'x'.join([str(home_skaters), str(away_skaters)])
