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

import java.util.*;
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 test = "     \t4,      6     \n  ,     1  \r\n";
		String[] xs = test.trim().split("\\s*,\\s*");
		System.out.println(Arrays.asList(xs));
	}
}