def evaluate_responses(responses_A, responses_B):
    wins_A, wins_B = 0, 0
    for (response_A, score_A), (response_B, score_B) in zip(responses_A, responses_B):
        if score_A > score_B:
            wins_A += 1
        else:
            wins_B += 1
    success_rate_A = (wins_A / len(responses_A)) * 100
    success_rate_B = (wins_B / len(responses_B)) * 100
    return success_rate_A, success_rate_B