SherlockAndAnagram - use advanced C# programming expression - Lambda ?

SherlockAndAnagram9.cs

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

class Solution
{
    static void Main(String[] args)
    {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution */
        int cases = int.Parse(Console.ReadLine());
        for (int c = 0; c < cases; c++)
        {
            var s = Console.ReadLine();              
            var d = new Dictionary<string, int>();
            for (int i = 0; i < s.Length; i++)
            {
                for (int j =1; j + i <=s.Length; j++)
                {
                    var ss = new string(s.Substring(i, j).OrderBy(x=>x).ToArray());
                    if (d.ContainsKey(ss))
                        d[ss]++;
                    else
                        d[ss] = 1;
                }
            }

            int total = 0;
            foreach (var kvp in d)
            {
                for (int j = 1; j < kvp.Value; j++)
                {
                    total += j;
                }
            }
            Console.WriteLine(total);
        }
    }
}