import java.util.*;
import java.io.*;
class JumbleWords{
  public static void main(String [] args){
  //Get and read text
    System.out.print("Enter some text:\n");
    Scanner getText= new Scanner(System.in);

    while (getText.hasNextLine()){
      Scanner line= new Scanner(getText.nextLine());
      //Get next word from line
      while (line.hasNext()){
        String word= line.next();
        int wordLength= word.length();
        char [] letters= word.toCharArray();

          //Prints every other letter starting with the second
        for (int x= 1; x < wordLength; x+=2){
          System.out.print(letters[x]);
        }
          //Prints every other letter starting with the first
        for (int x= 0; x < wordLength; x+=2){
          System.out.print(letters[x]);
        }
        System.out.print(" "); //Add space between words
      }
      System.out.println();  //end line
      break;
    }
  }
}