import java.util.*;
import java.lang.*;
import java.io.*;

class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
        String fileContent = "aaabbcac aabb\nbcbcbbccc babba";
        String pattern = "(?m)^.*?(bb\\S*).*(.)(abb).*$";
        String extractionFormatter = "$2: $1 $2$3, \\$$3";
        System.out.print(fileContent.replaceAll(pattern, extractionFormatter));
	}
}