Student Course Enroller

You are tasked with organizing a set of student enrollments in different courses. Each enrollment includes a student's name and the course they are enrolled in. Sort the list of enrollments first by course name in ascending order, then by student name in ascending order. Input format: The first line contains an integer S (1 <= S <= 1000) — the number of enrollments. The next S lines contain a student's name (a string) and a course name (a string) separated by a space. Output format: Print the sorted list of enrollments, each on a new line in the format: 'student_name course_name'. Example: Input: 3 Alice Math Bob Science Charlie Math Output: Alice Math Charlie Math Bob Science