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]: ['i', 'o', '1321', 'I', 'W', 'e', '1201', 'I', 'e', 'F', '9841', 'm', '9827', 'q', 'f', 'X', '8261']
[EX A]: 30451

[EX Q]: ['n', 'm', 'Y', 'v']
[EX A]: 0

[EX Q]: ['1037', '4127', 'q', '3583', 'P', 'N', '5023', '995', 'i', '8559', 'A', 'i', '2677', '3599', 'o', 's']
[EX A]:
29600