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]: ['v', '9511', 'f', 'q']
[EX A]: 9511

[EX Q]: ['D', 'C', '7295', 'g', 'j', '1387', 'O', '4701', 'B', 'd', 'W', 'b', 's', 'n', 'n', '4917', '2941', '1825', 'x']
[EX A]: 23066

[EX Q]: ['b', 'D', 'T', '3385', 'j', 'p', 'M', '1511', '6385', 'Y', 'V', 'z', 'c', 'E', 'E', 'R', '2855']
[EX A]:
14136