import java.util.*;
import java.util.regex.*;
import java.lang.*;
 
class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String time = "14:35:59.99";
		String timeRegex = "([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])(?:\\.([0-9]{1,3}))?";
		Pattern pattern = Pattern.compile(timeRegex);
		Matcher matcher = pattern.matcher(time);
		if(matcher.matches()) {
			String hours = matcher.group(1);
			String minutes = matcher.group(2);
			String seconds = matcher.group(3);
			String miliSeconds = matcher.group(4);
			System.out.println(hours + ", " + minutes  + ", " + seconds + ", " + miliSeconds);
		}
	} 
}

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