def get_stackoverflow_scores(stackoverflow):
    """
    Calculates StackOverflow Contribution, Activity and Reputation Scores.
    :param stackoverflow: StackOverflow Instance.
    :return: Tuple of individual scores.
    """
    stackoverflow_contribution_score = 0
    stackoverflow_reputation_score = 0
    stackoverflow_activity_score = 0
    if stackoverflow.exists():
        stackoverflow = stackoverflow[0]
        stackoverflow_contribution_score = stackoverflow.contribution_score
        stackoverflow_reputation_score = stackoverflow.reputation_score
        stackoverflow_activity_score = stackoverflow.activity_score
    return stackoverflow_contribution_score, stackoverflow_reputation_score, stackoverflow_activity_score