import java.util.Scanner;

/*
 * Prompts for first name and last name and uses concatenation to produce a full name.
 */
public class NameConcat
{	public static void main(String[] argv)
	{
	 	Scanner sc = new Scanner(System.in);
	 	System.out.print("Enter a first name: ");
	 	String firstName = sc.next();
	 	System.out.print("Enter a last name: ");
	 	String lastName = sc.next();
	 	String fullName = lastName + ", "+ firstName;
	 	System.out.println(fullName);
	}
}