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: ['X', 'u', 'B', '269', '9089', 'M', '5175', 'K']

A: 14533
****
Q: ['M', '1589', '8353', 'X', 'P', '3173', 'V', '1335', 'm', 'l', '6421', '4823', 'r', '8941', '4255', '9107', 'z', '2449', '2321', 'l']

A: 52767
****
Q: ['g', 'I', 'S', 'y', '1175', 'e', '6187', 'P', 'j', 'f', '8303', '99', 'O', 'C', '6795', 'W', '6129', '6237', '8029']

A:
42954
****