Jared's younger brother has been struggling with his math homework, specifically the chapter on calculating the area of squares and rectangles. After being taught the necessary formulas in school, he is now seeking Jared's help to complete his assignment.

Jared, being the tech-savvy individual that he is, has come up with a possible solution to this problem: a smart contract that can calculate the area of squares and rectangles.

His smart contract must include the following public funtion:

squareArea(uint a) returns (uint) {}: This function must return an integer which is the area of a square with length of each side as 'a', where 1 <= a <= 2^253 It is guaranteed that the squares always have length as a positive integer.

rectangleArea(uint a, uint b) returns (uint) {}: This function must return an integer which is the area of a rectangle with length and breadth 'a' and 'b', where 1 <= a,b <= 2^253 It is guaranteed that the squares always have both length and breadth as a positive integer.

Example 1

Example

Function

Parameter

Returns

1

squareArea()

(5)

25

2

rectangleArea()

(2,3)

6

With this smart contract solution, Jared's younger brother can now easily calculate the area of squares and rectangles without the need for manual calculations or complicated formulas.
Can you provide a possible smart contract solution for Jared to share with his brother?