In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.

['X', 'u', 'B', '269', '9089', 'M', '5175', 'K']
14533

['n', 'u', '9595', 'M', 'o', 'K', '5073', 'x']
14668

['U', 'g']

0