from collections import defaultdict


def main():
    tag_score = defaultdict(int)
    for _ in range(int(input())):
        input()
        _, S = map(int, input().split())
        for tag in input().split():
            tag_score[tag] += S

    tag_score_list = [elm for elm in tag_score.items()]
    tag_score_list.sort(key=lambda elm: (-elm[1], elm[0]))
    for idx, (tag_str, num) in enumerate(tag_score_list):
        if idx >= 10:
            break
        print(tag_str, num)


if __name__ == "__main__":
    main()