Find whether a given year is a leap year.
Just a reminder: a leap year is divisible by 4 AND NOT divisible by 100 OR divisible by 400 (for example, the year 2000 is a leap year, but the year 2100 will not be a leap year).
The program should work correctly for the years 1900 ≤ n ≤ 3000.
Output "Leap" (case-sensitive) if the given year is a leap year, and "Regular" otherwise.
It is enough to write a simple conditional statement to solve this task.