//Java template for fast I/O

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.IOException;
import java.util.StringTokenizer;

public class Main
{
	public static void main(String[] args)
    {
		InputStream inputStream = System.in;
		OutputStream outputStream = System.out;
		InputReader in = new InputReader(inputStream);
		PrintWriter out = new PrintWriter(outputStream);
		Task solver = new Task();
		solver.solve(1, in, out);
		out.close();
	}
}

class Task
{
    public void solve(int testNumber, InputReader in, PrintWriter out)
    {

    }
}

class InputReader
{
    public BufferedReader reader;
    public StringTokenizer tokenizer;

    public InputReader(InputStream stream)
    {
        reader = new BufferedReader(new InputStreamReader(stream), 32768);
        tokenizer = null;
    }

    public String next()
    {
        while (tokenizer == null || !tokenizer.hasMoreTokens())
        {
            try {
                tokenizer = new StringTokenizer(reader.readLine());
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return tokenizer.nextToken();
    }

    public int nextInt()
    {
        return Integer.parseInt(next());
    }

}

Create Main.java