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 = explode(" ", trim(fgets(STDIN)));
    
    echo ($input[0] * $input[1]) . " ";
    echo ($input[0] * 2) + ($input[1] * 2) . PHP_EOL;