1. Write a program that reads from the console three numbers of type int and prints their sum.
2. Write a program that reads from the console the radius "r" of a circle and prints its perimeter and area.
3. A given company has name, address, phone number, fax number, web site and manager. The manager has name, surname and phone number. Write a program that reads information about the company and its manager and then prints it on the console.