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;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ITP1_1_C
{
    class Program
    {
        static void Main(string[] args)
        {
            //縦 a cm,横 b cmの長方形の面積と周の長さを求める

            string[] str = Console.ReadLine().Split(' ');           //String.Splitメソッド
                                                                    //文字列を指定した区切り文字で分割し、配列に格納する
            int a = int.Parse(str[0]);
            int b = int.Parse(str[1]);

            Console.WriteLine(a * b + " " + (a + b) * 2);

            Console.ReadKey();
        }
    }
}