A state forms its license plates by first listing a number that corresponds to the county in

Question:

A state forms its license plates by first listing a number that corresponds to the county in which the owner of the car resides. (The names of the counties are alphabetized and the number is its location in that order.) Then the plate lists a letter fo the alphabet, and this is followed by a number from to 9999.how many such plates are possible if there are 80 counties?