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]: ['w', 'V', '3359', '8847', '7551', '2481', 'Y', 'j', 'L', 'G', '7905', 'v', '4141', '2229', 'k', 'H', '3517', '3885', '3665', 'O']
[A]: 47580


[Q]: ['N', '1337', 'C', 'T', '863', 'j', '2369', 'P', 'A', 'x', '5725', '2333', 'Q', '9149', 'Q', '8529', 'N']
[A]: 30305


[Q]: ['1215', '4275', 'l', 'E', '7167', 's', '5529', '8415', 'S', 'H', 'l', 'O', 't', 'X', 'm', 'v', '1297', 'V']
[A]:
27898