In base $$16$$ number system, digits larger than $$9$$ are represented by letters. $$A$$ (base $$16$$) $$= 10$$, $$B$$ (base $$16$$) $$= 11$$, $$C$$ (base $$16$$) $$= 12$$, and so on.      Calculate $$2A3+17B$$ in a hexadecimal (base $$16$$) number system. 
Overseas Competition->Knowledge Point->Number Theory Modules->Place Value and Number Bases