import java.util.*;
class Message{
    private String encodedMessage, decodedMessage;
    public Message(String encodedMessage){
        this.encodedMessage = encodedMessage;
        decode();
    }
    private void decode(){
        String temp="";
        decodedMessage="";
        int number;
        for( int index=encodedMessage.length()-1; index>=0; index--){
            temp+=encodedMessage.charAt(index);
            number=Integer.parseInt(temp);
            if(number==' ' || Character.isLetter(number)){
                decodedMessage+=(char)number;
                temp="";
            }
        }
    }
    public String toString(){
        return decodedMessage;
    }
}
public class ISC2004Q2 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        System.out.println("INPUT:\nEncoded Message:");
        String encodedMessage = in.next();
        Message msg = new Message(encodedMessage);
        System.out.println("OUTPUT:\n"+msg);

        in.close();
    }
}