year = int(input('Please enter a year greater than 100:\n'))
# if (year <= 100):
#  print('Error: Year {0} is less than or equal to 100'.format(year))

if year % 4 == 0:  # is not divisible by 4, it is not a leap year.
    print('{} is a leap year!'.format(year))

elif (year % 100 == 0) and (year % 400 == 0):  # is divisible by 100 but not by 400, it is not a leap year.
    print('{} is a leap year!'.format(year))

elif (year % 100 and year % 400):  # is divisible by 100 and 400, it is a leap year.
    print('{} is a leap year!'.format(year))

elif (year % 100 == 0) and (year % 4 == 0):  # it is a leap year.
    print('{} is a leap year!'.format(year))
else:
    print('{} is not a leap year!'.format(year))
if (year <= 100):
    print('Error: Year {0} is less than or equal to 100'.format(year))