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: ['s', 'd', 't', '8235', '2279', '7477', '3029', '4377', '9153', '4309', '2295', '407']

A: 41561
****
Q: ['r', '2251', 'X', 'H', 'a', '5463', 'g', 'M', '9797', '1581', 'o', 'm', 'v', 'E']

A: 19092
****
Q: ['K', '5519', '229', 'p', 'w', '1241', 'T', '6921', 'F', 'S', '7715', 'j', '3291', 'F', '5419', '2441', 'L', '1853']

A:
34629
****