Please write the output of the following program:

public class Addition1

{

//-----------------------------------------------------------------

// Concatenates and adds two numbers and prints the results.

//-----------------------------------------------------------------

public static void main(String[] args)

{

System.out.println("20 and 30 concatenated: " + 20 + 30);

System.out.println("20 and 30 added: " + (20 + 30));

}

}