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 Scala (judge verdict: Accepted)

 import scala.io.StdIn.readLine //??????????????????import???????????¨readLine()?????????????????????
 object Main {	
 	def main(args: Array[String]){
 	val input=readLine()
 	val strarray=input.split(' ')
 	val numarray=strarray.map(_.toInt)//???????????§??\????????????
 	val a=numarray(0)
 	val b=numarray(1)
 	//????¨?????????§??????????????????????????????
 	//val Array(a,b)=readLine().split(' ').map(_.toInt)
 	//??¨??????????????????
 	val area=a*b
 	val length=2*(a+b)
 	val ans= area+" "+length
 	println(ans)
 	}
 }