import java.util.*;
/**
 * The InputReader class is used for read the input entry.
 *
 * @author      Muhammad Bagus Istighfar
 * @version     0.1 - 11 November 2020
 */
public class InputReader
{
    private Scanner reader;
    public InputReader()
    {
        reader = new Scanner(System.in);
    }
    /**
     * Read user input
     */
    public HashSet<String> getInput()
    {
        System.out.print(">> ");
        String inputLine = reader.nextLine().trim().toLowerCase();
        
        String[] wordArray = inputLine.split(" ");
        	
        HashSet<String> words = new HashSet<String>();
        for(String word : wordArray)
        {
            words.add(word);
        }
        return words;
    }
}