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: WA: Presentation Error)

using System;
class rectangle{
	static void Main(){
		int a,b,l,s;//lは周の長さ、sは面積
		string[] str = Console.ReadLine().Split(' ');//2つ以上のスペース区切り入力の取得
		a = int.Parse(str[0]);  //数値で受け取りたい場合は変換する
		b = int.Parse(str[1]);
		s = a*b;
		l = (a+b)*2;
		Console.Write(s+" "+l);
	}
}