/* 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   str = "77755529";
String[] res = str.split("(?<=(.))(?!\\1)");

System.out.println(Arrays.toString(res));
	}
}