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.

[EX Q]: ['6515', '5525', 'o', 'Q', '9049', 'f', 'p', 'X', '2057', 'h', '7585', '3617', '7817']
[EX A]: 42165

[EX Q]: ['83', 'k', 'p', 'o', 'b', '7819', '2089', '4141', 'c', 's', '6045', '6783', 'J', 'B', 'x', 'O', 'X', '9693']
[EX A]: 36653

[EX Q]: ['K', '3187', 'h', 'o', 'h', '5249', 'i', 'L', 'p', '3819', '3837', '8091', 's', '8921', 'C', '7673']
[EX A]:
40777