import java.io.PrintStream;
import java.util.*;

public class Main
{

    static PrintStream o=System.out;
	public static void main (String[] args)
	throws Exception
	{
		String s="a, b, c, d,,,";
		
		String[] spl=s.split ( "," );
		o.println(spl.length);
		for (String s1: spl)
			o.print(s1+";");
		
		StringTokenizer st=new StringTokenizer(s);
		o.println("\n"+st.countTokens ());
		while (st.hasMoreElements ()){
			o.print(
				st.nextToken ()+";"
			);
		}
		st=new StringTokenizer(s,",");
		o.println("\n"+st.countTokens ());
		while (st.hasMoreElements ()){
			o.print(
				st.nextToken ()+";"
			);
		}
	}
}