using System;
using System.IO;
using System.Collections;
class Class1
{
	static void Main(string[] args)
	{
		// Make sure a file name was entered on the command line
		if (args.Length == 0) 
		{
			Console.WriteLine ("Error: Missing file name and/or pattern");
			return;
		}

		StreamReader reader = null;
		reader = new StreamReader (args[0]);
		ArrayList wl = new ArrayList ();
		ArrayList pl = new ArrayList ();
		char[] wp;
		char next = 'A';
		bool f = false;
		

		for (string word = reader.ReadLine (); word != null;
			word = reader.ReadLine ()) 
			
		{
			word.ToLower();
			wl.Add(word);
			wp = word.ToCharArray();
			wp[0]='A';
			next = 'B';
			for(int i=1;i<word.Length;i++)
			{
				f=false;
				for(int j=i-1;j>=0;j--)
				{
					if(word[i]==word[j])
					{
						wp[i]=wp[j];
						f=true;
						break;
					}

				
				}
				if(!f)
				{
					wp[i]=next;
					next++;
					
				}

			}
			

			string t = new String(wp);
			pl.Add(t);
		}
		/*foreach(string t1 in wl)
			Console.Write(t1+"\n");
		foreach(string test in pl)
			Console.Write(test+"\n");*/
		int c=0;
		for(int k=0;k<pl.Count;k++)
			if((string)pl[k]==args[1])
			{
				c++;
				Console.Write(wl[k]+"\r\n");
			}
		Console.Write(c + " matches");
				
	

	}
}