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: ['Y', '263', '641', '1163', 'p', 'r', 'L', '4425', 'C', '7585']

A: 14077
****
Q: ['O', 'F', 'd', '3765', '2167', 'C', 'Z', 'P', 'A', 'U', 'v', 'h', '4339', '1171']

A:
11442
****