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: ['f', '6703', 'c', 'c', 'l', '2511', '6507', 'b', '9727', 'l', '1251', 'I', '5231', '91', 'L', 'M', 'd']

A: 32021
****
Q: ['543', '8351', 'I', 'M', '6647', '731', 'b', 'r', 'l', '3935', 'k', 'z', 'v', '2131', '7781', 'X', '9419', '5013', 'F']

A: 44551
****
Q: ['D', 'w', '3651', '789', 'W', 'd', 'T', '497', '2749', '2465']

A:
10151
****