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

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        System.out.println("Hello world!");
        String text = "this is manasa this the grest is this price this";
        String[] words = text.split(" ");
        String newstr="";
        List<String> arrt = new ArrayList<String>();
        for(String w : words){
            if(!arrt.contains(w)){
                newstr = newstr + w + " ";
                arrt.add(w);
            }
        }
        System.out.println("n----"+ newstr);
    }
}