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 JavaScript (judge verdict: Accepted)

const input = require('fs').readFileSync('/dev/stdin', 'utf8');
const lines = input.trim().split('\n');

while (line = lines.shift()) {
  const dim = line.split(' ');
  const a = dim[0];
  const b = dim[1];
  const area = a * b;
  const perimeter = a * 2 + b * 2;
  console.log(area, perimeter);
}