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: ['a', 'q', '4085', '6327', '6869', 'Z', 't', '7057', '1965', 'p', 'o']

A: 26303
****
Q: ['8267', '5931', 'K', '8901', 't', '2239', 'Z', '7985', '891', '639', 'f', 'b', 'D', 'V', 'Z', '7091']

A:
41944
****