def compute_average_scores(scores):
    if not scores or len(scores) <= 0 or len(scores) > 100:
        return "Error"
    num_students = len(scores[0])
    if num_students <= 0 or num_students > 100:
        return "Error"
    averages = []
    for i in range(num_students):
        total = sum(score[i] for score in scores)
        avg = total / len(scores)
        averages.append(avg)
    return tuple(averages)

if __name__ == '__main__':
    n, x = map(int, input().split())
    scores = []
    for _ in range(x):
        scores.append(tuple(map(float, input().split())))

    result = compute_average_scores(scores)
    for avg in result:
        print(f"{avg:.1f}")