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: Time Limit Exceeded)

#include<stdio.h>

int main(void)
{
  int a, b;

  do {
    scanf("%d %d", &a, &b);
  }while(a <= 1 || 100 <= a || b <= 1 || 100 <= b);

  printf("%d\n", a * b);

  return 0;
}