// URL that generated this code:
// http://txt2re.com/index-java.php3?s=42%2043&2&-5&1 

import java.util.regex.*;

class Main
{
  public static void main(String[] args)
  {
    String txt="42 43";

    String re1="(\\d+)";	// Integer Number 1
    String re2="( )";	// White Space 1
    String re3="(\\d+)";	// Integer Number 2

    Pattern p = Pattern.compile(re1+re2+re3,Pattern.CASE_INSENSITIVE | Pattern.DOTALL);
    Matcher m = p.matcher(txt);
    if (m.find())
    {
        String int1=m.group(1);
        String ws1=m.group(2);
        String int2=m.group(3);
        System.out.print("("+int1.toString()+")"+"("+ws1.toString()+")"+"("+int2.toString()+")"+"\n");
    }
  }
}

//-----
// This code is for use with Sun's Java VM - see http://java.sun.com/ for downloads. 
//
// Paste the code into a new java application or a file called 'Main.java'
//
// Compile and run in Unix using:
// # javac Main.java 
// # java Main 
//