Leap Year

The code will display the following depending on the input:

If the input is "2006":

If the input is "2010":

If the input is "2012":

Leap year.

year = int(input("Which year do you want to check? "))
if year % 4 == 0:
  if year % 100 == 0:
    if year % 400 == 0:
      print("Leap year.")
    else:
      print("Not leap year.")
  else:
    print("Leap year.")
else:
  print("Not leap year.")