from collections import defaultdict
N = int(input())
dic = defaultdict(int)
for i in range(N):
    No = int(input())
    m, s = map(int, input().split())
    tags = list(input().split())
    for j in range(m):
        dic[tags[j]] += s

rec = []
for k, v in dic.items():
    rec.append((k, v))

rec = sorted(rec)
rec = sorted(rec, key=lambda t: t[1], reverse=True)

n = min(10, len(rec))
for k in range(n):
    print("{} {}".format(rec[k][0], rec[k][1]))