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: ['6907', '9123', 'L', '8871', 'q', 'C', 'U', '7403', 'F', '3827', '3951', '8879', '2865', 'x', '6175', 'T', '1147']

A: 59148
****
Q: ['9445', '7291', 'r', 'g', '1175', '7823', '5507', 'j', '7249', '6335', '3853', 'b', 'u', 'S', '365', 'Z', '7489', 'S', 'W', 'e']

A: 56532
****
Q: ['5383', '8071', '7907', '2013', 'w', '8269', 'J']

A:
31643
****