Need help to print numbers

CAN SOMEONE HELP ME TO WRITE A JAVA CODE Please

//WHAT I AM TRYING TO DO HERE IS TO PRINT NUMBERS LIKE THIS EXAMPLE:

12345678910

246810 1214161820

36912 15 1821242730

There is a code to print first line (12345678910)

import becker.util.Utilities;

public class Main

{

public static void main(String[] args)

{ for (int b = 1; b <= 10; b+=1)

{ System.out.printf(" "+ b);

Utilities.sleep(30);

}

}

}

Thanks

[509 byte] By [Alex7] at [2007-11-26 12:03:15]