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 PHP (judge verdict: Accepted)

<?php
$Rectangle=trim(fgets(STDIN));
$ab = explode(" ", $Rectangle);
$a=$ab[0];
$b=$ab[1];

if(1<=$a && $b<=100){
    echo (int)($a*$b)." ".(int)($a+$b)*2;
}
?>