Define a class StatePair with two template types (T1 and T2), a constructor, mutators, accessors, and a PrintInfo() method. Three vectors have been pre-filled with StatePair data in main():vector> zipCodeState: ZIP code - state abbreviation pairsvector> abbrevState: state abbreviation - state name pairsvector> statePopulation: state name - population pairsComplete main() to use an input ZIP code to retrieve the correct state abbreviation from the vector zipCodeState. Then use the state abbreviation to retrieve the state name from the vector abbrevState. Lastly, use the state name to retrieve the correct state name/population pair from the vector statePopulation and output the pair. Ex: If the input is:21044the output is:Maryland: 6079602