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: ['Y', 'X', 'd', 'N', '1877', '2865', 'M', '1249', '9385', 'v', 'o', 'P', 'P', '6029']

A: 21405
****
Q: ['b', 'i', '7807', 'g', '1611', '6733', 'V', '561', 'C', '8575', 's', 'E', '8129', 'F']

A: 33416
****
Q: ['D', 'a', '8155', '3669', '8875', '5319', 'W', 'D', '2153', '903', 'I', 'Q', '3775', '6497', 'Z', 'T']

A:
39346
****