Problem:
Rectangle

Write a program which calculates the area and perimeter of a given rectangle.

Input

The length a and breadth b of the rectangle are given in a line separated by a single space.

Output

Print the area and perimeter of the rectangle in a line. The two integers should be separated by a single space.

Constraints

1 ≤ a, b ≤ 100

Sample Input 1

3 5

Sample Output 1

15 16

Solution in JAVA (judge verdict: Accepted)

import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.util.Scanner;
public class Main {
	public static void main( String[] args ) {
		Scanner sc = new Scanner( System.in ) ;
		String line = sc.nextLine();
		Pattern ptn = Pattern.compile( "^([0-9]+)\\s([0-9]+)$" ) ;
		Matcher mch = ptn.matcher( line );
		if ( mch.find() == true ) {
			int i = Integer.parseInt( mch.group(1) ) ;
			int j = Integer.parseInt( mch.group(2) ) ;
			System.out.println( i*j + " " + (2*i + 2*j) ) ;
		}
	}
}