Solve this in IOS Swift please ?

Part a: Implement the concept of inheritance. Create 3 classes department, telecom and software. Department has class members: chairman (string), (string func) welcome, students(int) Telecom has member: batches (bool) Software has member: semester (int) Display the following output by using above knowledge Welcome to telecom department Chairman of telecom department is ali shahzad There are 300 students in telecom department Telecom department has 5 graduate batches true Welcome to software department Chairman of software department is Hamza shah There are 100 students in software department 8th semester. (7) | Part b: (3) 1. Summarize main difference between classes and structures with help of an example