using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        string input = "(5x: 37/116/304ms)PAGEIOLATCH_SH:tempdb:12(*), (2x: 52/70ms)PAGEIOLATCH_SH:tempdb:11(*), (2x: 60/100ms)PAGEIOLATCH_SH:tempdb:17(*), (2x: 14/59ms)PAGEIOLATCH_SH:tempdb:4(*), (2x: 18/42ms)PAGEIOLATCH_SH:tempdb:5(*), (1x: 15ms)CXCONSUMER, (1x: 38ms)PAGEIOLATCH_SH:tempdb:13(*), (1x: 60ms)PAGEIOLATCH_SH:tempdb:14(*), (1x: 65ms)PAGEIOLATCH_SH:tempdb:15(*)";

        PrintHistogram(input);

    }

    public static void PrintHistogram(string input)

    {

        var lines = CreateHistogram(input);

        lines.ForEach(l => Console.WriteLine(l));

    }

    public static List<string> CreateHistogram(string input)

    {

        return input

                  .Split(',')

                  .Select(l => l.Trim())

                  .Select(rl => new { Count = GetCount(rl), Key = GetKey(rl) } )

                  .GroupBy(x => x.Key, x => x.Count, (key, count) => new { Key=key, Count = count.Sum() })

                  .Select(g => $"{g.Count}x {g.Key}")

                  .ToList();

    }

    public static int GetCount(string input)

    {

        return int.Parse(input.Substring(1, input.IndexOf('x')-1));

    }

    public static string GetKey(string input)

    {

        int start = input.IndexOf(')')+1;

        int len = input.LastIndexOf(':') - start;

        len = len < 0 ? input.Length - start : len;

        return input.Substring(start, len);

    }

}