CoderByte Task 1

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

class Main {
  
  public static String ReplaceString(String str, String token){
    StringBuilder sb = new StringBuilder();
    for(int i=0; i<str.length(); i++){
      char c = str.charAt(i);
      if(token.contains(Character.toString(c))){
        sb.append("--" + c + "--");
      }
      else
        sb.append(c);
    }
    return sb.toString();
  }

  public static String StringChallenge(String str) {
    // code goes here  
    String token = "zqotaem487b";
    String[] words = str.split("\\W+");
    String longest = words[0];
    for(int i=0; i<words.length; i++){
        if(words[i].length() > longest.length()){
            longest = words[i];
        }
    }
    
    return ReplaceString(longest, token);
  }

  public static void main (String[] args) {  
    // keep this function call here     
    Scanner s = new Scanner(System.in);
    System.out.print(StringChallenge(s.nextLine()));
  }

}