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

[EX Q]: ['h', '1157', 'm', '8975', '6165', '7491', '1855', '3489', '9629', '631', '9641']
[EX A]: 49033

[EX Q]: ['D', '7589', 'V', 'e', '8565', '7513', 'q', '6997', '557', 'g', 'N']
[EX A]:
31221