Screen Time Tracker

Process screen time data for a class of students over 5 days.

For each student:

1. Input their name, then 5 daily screen times in minutes (validate each is >= 0).
2. Immediately output: their name, total screen time formatted as hours and minutes, and the count of days with > 300 minutes.

After all students, output the class average weekly screen time and the name of the student with the lowest total.

Input: Number of students, then for each student: name then 5 daily minutes. Output: Per-student stats, then class summary.

Example:

Input:  2
        Ali
        300 310 100 0 0
        Sam
        400 400 400 400 400
Output: Ali
        Screen time 11 hours 50 minutes
        Days with more than 300 minutes screen time 1
        Sam
        Screen time 33 hours 20 minutes
        Days with more than 300 minutes screen time 5
        Average weekly screen time for class 1355
        Lowest weekly time Ali