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: ['o', '445', '2601', 'h', 'V', 'C', 't', 'o', 'H', '3707', '7601']

A: 14354
****
Q: ['4401', 'p', 'V', 'l', 'H', '7329', 's', '4717', 'l', '1773', '67', '179', 'l', '6991', 'a', '9377']

A: 34834
****
Q: ['571', '15']

A:
586
****