day3-3.py

# Write a program that works out whether if a given year is a leap year. A normal year has 365 days, leap years have 366, with an extra day in February.
year = int(input("Which year do you want to check? "))

if year % 4 == 0:
    if year % 100 != 0 or year % 100 == 0 and year % 400 == 0:
        print("Leap year")
else:
    print("Not leap year.")