def main():
student1 = Student('alpha', 2018)
student1.takeCourse('cis110')
ta110 = TA('beta', 'cis110')
ta110.pickOfficeHours('Monday', 3)
ta110.pickRecitationTime(11)
student1.assignRecitationTA(ta110)
ta110.gradeStudent(student1, 'A')
student1.printReport()
student1.takeCourse('cis120')
ta120 = TA('gamma', 'cis120')
ta120.pickOfficeHours('Tuesday', 1)
ta120.pickRecitationTime(3)
student1.assignRecitationTA(ta120)
ta120.gradeStudent(student1, 'B+')
student1.printReport()
