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 C# (judge verdict: Accepted)

using System;

class Program
{
  public static void Main(string[] args)
  {
    int[] num = new int[2];
    string[] tmp = Console.ReadLine().Split(' ');
    for(int i = 0;i < 2;i++){
      num[i] = int.Parse(tmp[i]);
    }
    Console.WriteLine("{0} {1}",num[0]*num[1],2*(num[0]+num[1]));
  }
}