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{
    static void Main(){
    string[] str = Console.ReadLine().Split(' ');
    int a=int.Parse(str[0]);
    int b=int.Parse(str[1]);
    if(a>=1&&b<=100){
    Console.WriteLine("{0} {1}",a*b,a*2+b*2);}
}}