The function Square replaces each element of a list of integers with the square of that element. For example, when this function receives $[2,0,-3]$ as input, the output will be $[4,0,9].$ Incomplete code for Square is given below.

def Square$($A$)$:

for i in range$(0,$len$($A$))$:

#FIX ME#

return A

What should the line of code which contains the expression #FIX ME# be replaced with in order to complete the code?