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: Wrong Answer)

<?php
$input = fgets(STDIN);
$num=explode(" ", $input);
print_r($num);
$area=$num[0]*$num[1];
$side=($num[0]+$num[1])*2;
echo $area." ".$side;
?>