it has to be as many digits as possible not just 40 digits, I'm wodering how to do a linked list to do this problem

DESCRIPTION: The range of integers that can be represented in Java using a primitive data type is only from -263 to 263-1. What if we need to manipulate integer values beyond this range? ily large integer numbers. This class must implement arithmetic operations on integers such as addition, subtraction, multiplication and comparison. You have to implement this class without using Java predefined classes, unless specified otherwise. Additionally, you have to measure experimentally the running times of the operations implemented in your HugeInteger class and compare them with the measured running times of the corresponding operations provided by java.math.BigInteger class. SPECIFICATIONS The class HugeInteger must contain at least the following methods 1) public HugeInteger add (HugeInteger h): Returns a new HugeInteger repre- senting the sum of this HugeInteger and h. 2) public HugeInteger subtract (HugeInteger h): Returns a new HugeInteger representing the difference between this HugeInteger andh