import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.*;

public class WordStat {
  public static void main(String[] args) {
    if (args.length != 2) {
      System.err.println("incorrect input!");
      System.err.println("usage: java WordStat inputFile outputFile");
    }

    String inputFileName = args[0];
    String outputFileName = args[1];
    try {
      BufferedReader r = new BufferedReader(new FileReader(inputFileName));

      LinkedHashMap<String, Integer> wordCount = new LinkedHashMap<>();
      StringBuilder sb = new StringBuilder();

      int data = r.read();
      while (data != -1) {
        char c = (char) data;

        if (Character.getType(c) == Character.DASH_PUNCTUATION || 
            Character.isLetter(c) || c == '\'') {
          sb.append(c);
        } else {
          if (!sb.isEmpty()) {
            String word = sb.toString().toLowerCase();
            wordCount.put(word, wordCount.getOrDefault(word, 0) + 1);
            sb.setLength(0);
          }
        }
        
        data = r.read();
      }

      r.close();

      PrintWriter writer = new PrintWriter(outputFileName, StandardCharsets.UTF_8);

      for (Map.Entry<String, Integer> entry : wordCount.entrySet()) {
        String key = entry.getKey();
        int value = entry.getValue();
        writer.println(key + " " + value);
      }

      writer.close();

    } catch (Exception ex) {
      System.err.println("An error occured: " + ex.getMessage());
    }
  }
}