sequence = range(1, 11)
sum_of_squares = sum([i**2 for i in sequence])
square_of_sum = sum(sequence)**2
print(square_of_sum - sum_of_squares) # 2640
c2VxdWVuY2UgPSByYW5nZSgxLCAxMSkKc3VtX29mX3NxdWFyZXMgPSBzdW0oW2kqKjIgZm9yIGkgaW4gc2VxdWVuY2VdKQpzcXVhcmVfb2Zfc3VtID0gc3VtKHNlcXVlbmNlKSoqMgpwcmludChzcXVhcmVfb2Zfc3VtIC0gc3VtX29mX3NxdWFyZXMpICMgMjY0MA==