import java.io.FileNotFoundException;
import java.util.*;

public class MapCount {
    public static void main(String[] args) {
           Scanner input = new Scanner(System.in);

           String key = "";
           int key2 = 0;
           int T = 0;
           int K = 0;
           boolean i = true;
           int parsedLines = 0;
           int failedParsedLines = 0;
           String nextLine = "";
           Map<Integer, Integer> map = new TreeMap<>();

           try{
               System.out.print("Please enter a text name: ");
               String f = input.nextLine();
               java.io.File file = new java.io.File(f);
               String path = file.getPath();
               Scanner scan = new Scanner(file);
               if (i = true){
                      while (scan.hasNextLine()) {
                          try {
                              nextLine = scan.nextLine();
                              key = nextLine;
                              key2 = Integer.parseInt(key);
                              if (!map.containsKey(key2))
                                  map.put(key2, 1);
                               else
                                  map.put(key2, map.get(key2) + 1);
                              Integer ii = Integer.parseInt(nextLine);
                              parsedLines++;
                             T = T + ii;
                             K++;
                          }
                          catch(NumberFormatException ex){
                           System.out.println("Cannot parse string as integer: " + nextLine);
                           failedParsedLines++;
                          }
                      }
                    }
                }

           catch(FileNotFoundException ex){
               System.out.print("File not found.");
               System.exit(1);
           }
           int O = T / K;
           System.out.println("Number of parsable lines: " + parsedLines);
           System.out.println("Number of unparsable lines: " + failedParsedLines);
           System.out.println("Average value: " + O);
           int k = Collections.max(map.values());
           for(Map.Entry<Integer, Integer> entry : map.entrySet()){
        	   if (entry.getValue() == k){
        		   System.out.print(entry.getKey() + " ");
        	   }
           }
       }
   }