'''
Let’s say I give you a list saved in a variable:
a = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]. Write one line of Python that takes this
list a and makes a new list that has only the even elements of this list in it.
'''
a = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
data = [i for i in a if i%2==0]
print(data)  # gives us the even elements from list..

'''
without list comprehension
'''
output = []
for i in a:
    if i%2 == 0:
        output.append(i)
print(output)
