Implement SpecializedListInterface as described above Design a LargeInt ADT. Start by defining an interface called LargeIntInterface. Declare the abstract operations (add, subtract, setNegative). Implement it. We are expecting that you use SpecializedList as the underlying structure of LargeInt. Create as many helper methods as needed. LargeInt may use doubly linked nodes (unlike the diagram above) LargeInt nodes do not need to have more than one digit arguments for all methods must be of the type LargeInt with the exclusion of setNegative (shouldn't have argument)