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
$input = fgets(STDIN);
list($tate,$yoko) = explode(" ", $input);

function area($a,$b){
return $a * $b;
}

function length($a,$b){
return ($a*2) + ($b*2);
}

print area($tate, $yoko);
print " ";
print length($tate, $yoko);

?>