Write a program that takes three sets ’a’, ’b’, ’c’ as input read from the fileprog2input. txt. thefirst line of the file corresponds to the set ’a’, the second line is the set ’b’, and the third line isthe set ’c’. every element of each set is a character, and the characters are separated by space. implement algorithms for the following operations on the sets. each of these algorithms must bein separate methods or subroutines. the output should be written in the fileprog2output. txtandthe standard output. write a title before the output of each operation.