/* package whatever; // don't place package name! */

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

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String pat = "(?!^)\\.(?=[^.]*$)|(?<=^\\.[^.]{0,1000})$|$";
		System.out.println(Arrays.toString(".MyFile".split(pat,2)));
		System.out.println(Arrays.toString("MyFile.ext".split(pat,2)));
		System.out.println(Arrays.toString("Another.MyFile.ext".split(pat,2)));
		System.out.println(Arrays.toString("MyFile.".split(pat,2)));
		System.out.println(Arrays.toString("MyFile".split(pat,2)));
	}
}