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 JAVA (judge verdict: Accepted)

import java.io.*;

public class Main {  
    public static void main(String[] args)throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        Main m = new Main();
        String line = br.readLine();
        int[] num = m.splitIntChange(line);
        int area = num[0]*num[1];
        int cir = (num[0]+num[1])*2;
        System.out.println(area+" "+cir);
         
    }
     
    public int[] splitIntChange(String str){
        String[] str_ = str.split(" ");
        int strlen = str_.length;
        int[] numarray = new int[strlen];
         
        for(int i = 0;i < strlen;i++){
            numarray[i] = Integer.parseInt(str_[i]); 
        }
         
        return numarray;
    }
}