using System;
using System.Linq;
using System.Collections.Generic;

class No628
{
    static void Main()
    {
        var gazouCount = Int32.Parse(Console.ReadLine());
        SortedDictionary<string, int> gazouDic = new SortedDictionary<string, int>();
        for (int i = 0; i < gazouCount; ++i)
        {
            Console.ReadLine();//画像番号
            var tagNum = Console.ReadLine().Split(' ').Select(x => Int32.Parse(x)).ToArray();
            var tagStr = Console.ReadLine().Split(' ');
            for (int j = 0; j < tagNum[0]; ++j)
            {
                if (!gazouDic.ContainsKey(tagStr[j]))
                {
                    gazouDic.Add(tagStr[j], tagNum[1]);
                }
                else
                {
                    int value;
                    gazouDic.TryGetValue(tagStr[j], out value);
                    gazouDic[tagStr[j]] = value + tagNum[1];
                }
            }
        }
        var count = 0;
        var answer = gazouDic.OrderByDescending((x) => x.Value);
        foreach (var a in answer)
        {
            Console.WriteLine($"{a.Key} {a.Value}");
            if (++count >= 10) break;
        }
    }
}