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: ['R', '3361', 'c', 'S', 'g', '3829', '7347', '6633', 'e', '9227']

A: 30397
****
Q: ['8147', '3191']

A: 11338
****
Q: ['4913', 'Y', '2145', '6851', 'f', '9041', '6359', 'M', '1773', 'p']

A:
31082
****