1 def is_perfect_square(n):

     2     i = 1

     3     while i * i < n:

     4         i += 1

     5     return i * i == n

     6 

     7 def all_digits_even(n):

     8     if n < 0: n = -n

     9     while n > 0:

    10         if n % 2 == 1:

    11             return False

    12         n /= 10

    13     return True

    14 

    15 for i in range(2222, 8888):

    16     if all_digits_even(i) and is_perfect_square(i):

    17         print i