import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Scanner;

public class Singleton{
    private static Singleton main;
    private static ArrayList<String> obr;

    private Singleton() throws Exception{
        ArrayList<String> buf = new ArrayList<>();
        Scanner fr = new Scanner(new FileInputStream("Ob.txt"));
        String parse = fr.nextLine();
        String[] b = parse.split(", ");
        for(int i = 0; i < b.length; i++){
            buf.add(b[i]);
        }
        obr = buf;
    }

    private static void init() throws Exception{
        main = new Singleton();
    }


    public static String getObr(int i) throws Exception{
        if(main == null)
            init();
        return obr.get(i);
    }


}