codeC#

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

/**
 * Auto-generated code below aims at helping you parse
 * the standard input according to the problem statement.
 **/
class Solution
{
    static void Main(string[] args)
    {
        int N = int.Parse(Console.ReadLine()); // Number of elements which make up the association table.
        int Q = int.Parse(Console.ReadLine()); // Number Q of file names to be analyzed.
        Dictionary <string,string> extDict = new Dictionary <string,string>();
        string[] ext = new string [Q];
        
        for (int i = 0; i < N; i++)
        {
            string[] inputs = Console.ReadLine().Split(' ');
            extDict.Add("."+ inputs[0].ToUpper(), inputs[1]);
        }
        for (int i = 0; i < Q; i++)
        {
            string FNAME = Console.ReadLine(); // One file name per line.
            ext[i] = Path.GetExtension(FNAME).ToUpper();
            
            Console.WriteLine(extDict.ContainsKey(ext[i])? extDict[ext[i]] : "UNKNOWN"); 
        }
        /*foreach(string extension in ext)
        {
           if (extension == null)
           {
               Console.WriteLine("UNKNOWN");
               continue;
           }
           if(extDict.ContainsKey(extension))
           {
               Console.WriteLine(extDict[extension]);
           }
           else
           {
               Console.WriteLine("UNKNOWN");
           }
          
        }*/
        // Write an action using Console.WriteLine()
        // To debug: Console.Error.WriteLine("Debug messages...");


        // For each of the Q filenames, display on a line the corresponding MIME type. If there is no corresponding type, then display UNKNOWN.
     
    }
}