from collections import * N = int(input()) D = defaultdict(int) for _ in range(N): No = int(input()) m, s = map(int, input().split()) for t in input().split(): D[t] += s ans = [] for k, v in D.items(): ans.append((-v, k)) ans.sort() while len(ans) > 10: ans.pop() for v, a in ans: print(a, -v)