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
// Your code here!
    $num = trim(fgets(STDIN));
    $num1 = explode(" ",$num);
    
    echo intval($num1[0])*intval($num1[1]);
    echo " ";
    echo 2*(intval($num1[0])+intval($num1[1]));
?>