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.

[Q]: ['3013', '3955', 'f', '1183', '5111', '9509', '2351', '7087', 'f']
[A]: 32209


[Q]: ['2625', '1611', 'E', '4507', '3013', '1569', 'M', '2607', '1111', 'W']
[A]: 17043


[Q]: ['S', '8641', '5343', '447', '2313', '7151', '3071', '8923', 'U', '8113', 'I', 'j', 'C', 'K', 'D', 'S', '9815', 'q', '1683', '8311']
[A]:
63811