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;

namespace _1_1c
{
    class Program
    {
        static void Main(string[] args)
        {
            int piyo=1;
            int perimeter = 0;
            string ab;
            string[] side;
            ab=Console.ReadLine();
            
            side= ab.Split(' ');
            foreach( string hoge in side)
            {
                piyo = piyo * int.Parse(hoge);
                perimeter += int.Parse(hoge)*2;
            }
            
            
            Console.WriteLine("{0} {1}",piyo,perimeter);
        }
    }
}